Everyone knows your location: tracking myself down through in-app ads

https://timsh.org/tracking-myself-down-through-in-app-ads/

by apokryptein • 1 year ago

1957 607 1 year ago

ta988• 1 year ago

Shame on all of the people working on those systems. Legit companies trying to make the world better struggle to find competent people.

dylan6048• 1 year ago

Ugh. Eye roll on the whole “make the world better”. So few SV products remotely make the world better. The purpose of the vast majority is to make money at all costs. I also disagree with what most people claim is making the world better. All in all, I think social media is a net negative for the world for any good that might be found. Every SV thing after that is just chasing the recketship to the moon dream.

unification_fan• 1 year ago

So few SV products remotely make the world better

Because devs have to eat in order to survive?

RajT88• 1 year ago

I believe this was parodied multiple times in season 1 of Silicon Valley.

quacked2• 1 year ago

I think a big part of the ability of these shady companies pulling the brightest minds away from more clearly beneficial fields is that important flavors of ideology necessary to motivate people to take less lucrative work have been stripped from "business". There's a lot fewer appeals to art, history, cultural stewardship, or empire-building present in things like transportation, medicine, construction, etc. than there were in the past. Any flavor of "for the glory of God/the nation/the People/the Art" etc. is pretty effectively stripped out of American business, and I think that's the only kind of thing that would motivate someone who could make $250k in Adware to make $100k in something else.

People are now very well-trained to look out for their own bottom line, and take jobs accordingly.

quantified2• 1 year ago

Doing things because they increase some non-monetary value has fallen out of fashion for sure. A colleague of mine recently shared, in a group social setting, a sense of disappointment that his daughter was studying to be a doctor. I was, as far as I could tell, the only one to note that there is practical utility to having doctors.

But the "be part of our mission" was shown to be hollow over and over too. First and foremost, you as an enployee are making the investors and CEO rich. The mission is usually exploiting the employee, even when it's not exploiting the world. Employees have recognized the real social ethic (money over everything) and are just playing the same game. Which is sad.

Ideally the people who see these choices would make alternative choices that will leave their grandchildren better off in the world. It has taken only a generation for the "greed is good" mentality to drop us into this fetid soup.

rolph• 1 year ago

i believe there are somewhat fewer practicing freemasons in those places of layte.

scarface_746• 1 year ago

American business has never cared about any of that stuff. It was always lip service.

Also if you haven’t heard, the US government is currently a shit show right now run by Musk as far as employment

92834092322• 1 year ago

What companies?

throwaway847739• 1 year ago

I have the same question. It did not seem easy for me to find a job where we are at least not writing malware (according to my judgement). But it's far from making the world better :|

yread• 1 year ago

I work in cancer research. Some companies are there just for greed as well but at least the end product could be helpful

Yeul• 1 year ago

I read an interesting newspaper article about how the police confiscated a hired gun's iPhone and found that he ran a search on the city his victim lived in. It is these little digital breadcrumbs that makes life easy for the prosecution.

Seriously if you are going to do illegal things never ever buy a smartphone.

gruez20• 1 year ago

the police confiscated a hired gun's iPhone and found that he ran a search on the city his victim lived in.

It's far more likely they just looked at his browser history rather than doing some skullduggery with databrokers or whatever.

HelloUsername• 1 year ago

Related?

NSA Warns iPhone and Android Users–Disable Location Tracking https://news.ycombinator.com/item?id=42713536

Hackers Claim Breach of Location Data Giant, Threaten to Leak Data https://news.ycombinator.com/item?id=42627336

apples_oranges• 1 year ago

Logged in to upvote this

dylan6048• 1 year ago

It’s funny how in recent headlines the NSA & FBI have been saying to use secure messaging app. Yet the FBI is infamous for claiming the need for back doors into these encrypted apps. What are we to think of the opposing views? Are they really being benevolent for the citizens, or do they no longer need the back door, or do they have a back door whether intentional or not?

not2b• 1 year ago

It seems that they have changed their minds about surveillance back doors, after some devastating attacks, where Chinese state actors (among others) used back doors created for compliance with warrants to get in.

But that was the pre-Trump NSA and FBI. Now the Chinese and the Russians just need to get some DOGE volunteer to give them whatever they want, since Elon now has root on all the government payment systems and is too undisciplined to do things in a secure way.

nonrandomstring• 1 year ago

The world is changing fast and reasons for actions may be more complex and interesting than you assume.

Were they ever _not_ benevolent to US citizens as a whole, even if misguided? There may be last-ditch attempts to extend benevolence to US citizens as a takeover looms. If leaks from the Office of Personnel Management are to be believed, then right now US government is in the process of a soft coup, being dismantled along lines of political loyalty. I expect those working in intelligence and law enforcement who support democracy see the writing on the wall and will act sooner or later.

Reliable end to end encryption is an important tool for citizens of a nation that may need to organise in a hurry. We might see new Edward Snowden type revelations of programmes, naming key people or giving clear advice not to trust certain US based entities or services. Civil servants may act professionally as non-politically as they can, but in the end, if only to protect their jobs, they're going to come down on the side of democracy.

ipdashc• 1 year ago

What are we to think of the opposing views?

They're not homogenous organizations. Not sure about the FBI, but AFAIK the NSA has always been in an awkward spot of being split between defensive and offensive missions. It wouldn't be particularly surprising to have one arm going "you should all use encrypted messaging, it's the most secure" while the other arm is frantically trying to break or backdoor said encrypted messaging.

monlockandkey• 1 year ago

How did were the apps able to collect geolocation even though location services were disabled?

baggy_trough2• 1 year ago

Probably from IP address geolocation.

abound• 1 year ago

Indeed, the article notes that the lat/long wasn't "GPS exact", more like "postal code exact".

xenic• 1 year ago

Doing that on the client side sounds pointless though, if you are already transmitting the ip.

inahga5• 1 year ago

There are quite a few interesting tracking flows out there.

My rent is paid through a company called Bilt.

I discovered that when I shop at Walgreens now, Bilt sends me an email containing the full receipt of what I bought like so:

    > Hey [inahga],
    >
    > You shopped at Walgreens on 12/1/24 and earned Bilt Points with your
    > Neighborhood Pharmacy benefit.
    >
    > Items eligible for rewards
    > TOSTITOS HINT OF LIME RSTC 11OZ
    > $3.50
    > 
    > +3 pts
    > TOSTITOS RSTC 12OZ
    > $3.50
    >
    > +3 pts
    > Other items*
    > EXCLUDED ITEMS
    > $0.07
    >
    > *May include rewards-ineligible items and/or prescriptions.

Ostensibly (hopefully) it would exclude sensitive items, plan B, condoms, etc...

I'm curious how this data flows from Walgreens to my rent company, but maybe I'd rather not know and just use cash/certified check from now on.

andrewfromx• 1 year ago

"Bilt Members can earn points on Walgreens purchases made using any card linked to their Bilt account."

https://support.biltrewards.com/hc/en-us/articles/2901187842...

There's that FSA/HSA benefit section at the bottom which explicitly states that Bilt receives item-level data:

https://www.biltrewards.com/terms/walgreens

gruez20• 1 year ago

That just sounds like a standard cross-merchant loyalty program? I don't think there are many examples in the US, but once you realize it's a loyalty program you really shouldn't be surprised that they're tracking your purchase history. That's basically the entire premise.

dylan6048• 1 year ago

Hopefully exclude? By whom? At some point, somebody has to decide it was sensitive, by what standards? Does Bilt decide to not use it after they were already sold the data? Does the aggregator after already been sold it by the harvesting seller? Does the harvesting app reduce the appeal of their data by deliberately excluding the data? Does the harvesting app care to spend the money on doing that?

inetknght4• 1 year ago

just use cash/certified check from now on

You might want to discover about sophistication and pervasive facial recognition technology used by major retailers. Paid by cash? It can still be tracked to you. For "fraud prevention", of course.

gruez20• 1 year ago

Paid by cash? It can still be tracked to you. For "fraud prevention", of course.

They can already track you through your phone and/or credit cards. Why bother setting up a massive facial recognition system for people paying with cash when they only account for 10% (or whatever) of overall shoppers, and have less disposable income than average?

londons_explore• 1 year ago

Are you aware of cases where it is used for more that theft prevention/manual review of CCTV?

I'm not aware of any big retailers using facial data for targeting vouchers or anything similar.

Simple things like "did walk through the door with a child" would be pretty valuable data, yet as far as I know, nobody uses it.

kortilla6• 1 year ago

Is there actual evidence of this, like anywhere?

Facial recognition on a small corpus of known faces (what everyone experiences on Facebook, their phones, etc) is an easy problem.

Walmart picking up a face walking into a store and matching it against 30 million possibilities is going to return so many false positive matches it’s going to be completely useless.

8xeh• 1 year ago

Facial recognition is illegal where I live, both for gov't and commercial uses. Several major cities in the US have banned it (e.g., San Francisco, Boston, etc.).

curiousthought• 1 year ago

This is called Level 3 data, and any merchant can choose to provide it for a reduction in the transaction fees they pay.

Here's a small comment thread from a few months back: https://news.ycombinator.com/item?id=41213632

uoaei3• 1 year ago

Is there any documentation on this to read further? I.e. what the different levels contain and how much on average is the cost reduction for the merchant.

anon70002• 1 year ago

It’s honestly crazy that we allow companies to sell our data — and even financially incentivize companies to share our data like this.

coin2• 1 year ago

Who is Level 3 data shared with, ie who is the aggregator? Is it the credit card bank then aggregates and sells it?

baxtr• 1 year ago

So in essence the merchant pays with my data?

inahga5• 1 year ago

Thanks for the details.

choose to provide it for a reduction in the transaction fees they pay.

That would explain why I can use my credit card for rent without a transaction fee! No free lunch!

nicbou4• 1 year ago

Things like that are on my mind when HN rants about GDPR. Something like this would be wildly illegal where I live.

DoubleGlazing• 1 year ago

Unfortunately the GDPR is largely toothless if a company without an EU presence chooses to ignore it.

I live in Ireland and my data is in the databases of several US data brokers. Thise conpanies can't be forced to to comply with the GDPR because they simply do not have an EU presence. You don't have to search far to find stories from people people who made complaints to their local Data Protection office about such issues only to be told there's nothing that can be done.

kortilla6• 1 year ago

HN rants about it because it’s not a good solution. It identified a problem but caused an idiotic fallout (cookie banners) and failed to actually put in a framework to enforce that companies aren’t just lying.

inahga5• 1 year ago

FWIW in Illinois, where I’ve experienced this, there is a bill https://www.ilga.gov/ftp/legislation/102/billstatus/HTML/102... that appears to be GDPR-esque or CCPA-esque. Seems to have little interest though.

jay-barronville• 1 year ago

I’ve had to deal with Bilt [0]. In case you’re not aware, they have a “feature” called Instant Link that automatically pulls ALL of your personal and sensitive financial data from financial institutions, including your credit card accounts, balances, etc. They apparently do this via a partnership with a company called Method Financial [1].

It’s frankly the most intrusive thing I’ve ever encountered in any software I’ve ever used—I’m not sure how it’s even legal, but this is America where we have no real privacy rights.

Instead of giving you the option to opt in for them to get this level of access, they automatically enroll you into it when your account is created, pull your data, and then allow you to “opt out” afterward, which enables them to have access to your personal and sensitive financial data anyway. And since you literally must have an account with them if your building uses their services for rent payments, they’ve effectively rigged the system to force millions of folks to unknowingly give them access to their personal and sensitive financial data.

Anyway, in your Bilt privacy settings, there are some options you can disable (including Instant Link), and I recommend that you disable ALL of them, although given the dark practices of this company, I don’t even trust that those settings are actually honored.

Side note: Did you know about a company called Method Financial that somehow has real-time access to ALL of your personal and sensitive financial data? Did you know that this company you never heard of that has said access then sells that access to the highest bidder? Do you remember agreeing to any of that anywhere? Yeah, me neither (on all counts)…

[0] https://www.biltrewards.com

[1] https://methodfi.com

inahga5• 1 year ago

Thanks for the heads up. Luckily I can go back to analog with certified funds to pay rent. I suspect, without evidence, this is due to the relatively strong tenant protections in Chicago.

jrockway• 1 year ago

What's most interesting to me about that is that they are willing to disclose that data to your email provider. Amazon, for example, is pretty cagey about what you've bought when sending emails, probably because they don't want Google to be able to use that information to target ads to you. (Not because they are Good and care about your privacy, but because they think they're going to beat Google at advertising. How's that going?)

So yeah, I don't get why they would do this. It gives their advertising competitors valuable data for free, and it pisses off customers by telling them that they're being tracked when they shop at Walgreens. Strange stuff.

myself248• 1 year ago

Oh, here I thought it was because every time I want to remember info about an order, it forces me back to their platform, rather than simply searching my email like I do for every other item I've ever purchased.

(And no, I don't use gmail.)

crazygringo• 1 year ago

I believe that's opt-in. At least it seemed to be when my landlord switched to Bilt.

There's a section of your Bilt profile that shows your other credit cards and whether you want them linked. It's pretty freaky to see them listed in the first place.

I definitely keep them off.

Bilt is ultimately a big points/reward program though, so you might get points for having them connected.

I still haven't figured out exactly what Bilt's business plan is, but the main part seems to be trying to get as much financial data on people as possible, and partnering with landlords to do so, and since it's how to pay your rent you can't unenroll completely. (Unless you maybe mail your landlord a paper check?)

inahga5• 1 year ago

It was opt-out for me. Or at least, I was never given informed consent that this data exchange going to take place.

The landlord of course makes it _seem_ like you have no other modes of paying rent. The cashier’s check option is buried in the fine print.

Dark patterns all around IMO.

DerSaidin• 1 year ago

It was initially opt in for me, then they made it mandatory.

(Sure, I could pay by check but consumer banking technology/US in the US already feels like is is lagging a decade behind other countries without voluntarily going further back. Paying by check every month would be quite inconvenient.)

I'd already decided to avoid bilt as much as possible, but reading this thread prompted me to try going a little further.

Looking through their privacy policy it talks about what California residents can do under CCPA: https://legal.biltrewards.com/policies

Request to Know... The specific pieces of Personal Information we collected about you.
You have the right to opt-out from having your Personal Information and Sensitive Personal Information sold to third parties. You also have the right to opt-out from having your Personal Information and Sensitive Personal Information shared with third parties for purposes of cross-contextual advertising

Might as well give this a go.

Sparkyte• 1 year ago

Preparation H, they should practice some level of sensitivity with such information.

kevin_thibedeau• 1 year ago

Loyalty cards are one avenue for data brokers to get your purchase history. Credit cards can also sell your purchase data. Currently the only safe-ish way to be anonymous is with cash. That may disappear with pervasive face recognition and cell phone tracking.

robocat• 1 year ago

So paying by cash is the easiest way to generally avoid this?

Clearly you can decide not to use Bilt, but maybe you get caught out some other way (bank, ...) - too difficult to track the trackers.

RandomBacon• 1 year ago

That's what I do, but I assume some stores like Target also track you by Bluetooth, facial recognition, etc, and can correlate any past or future cash purchases if you use your credit card once for maybe a large innocuous purchase.

random3• 1 year ago

I'm assuming you're using your Bilt card when this happens. Your Bilt agreement stipulates how itemized transaction data (level 3 in payment terms, with level 2 being "enriched" with subtotals/tax and merchant information- which is what you typically see with your normal bank)

Card networks (Mastercard, VISA) have different fee structures that incentivize more detailed information like level 3 for lower processing fees for merchants - here's more details on levels https://na-gateway.mastercard.com/api/documentation/integrat...

https://support.biltrewards.com/hc/en-us/articles/5536526023...

Perhaps more interesting in your case is that if you had your card issues in or before 2022, it's likely with Evolve bank which was breached - https://medium.com/@HackLaddy/when-your-bank-doxxes-you-9152...

Y_Y2• 1 year ago

If you find the condoms overly sensitive you can try one of the "long lasting" versions.

dspillett• 1 year ago

Is that my personality or my looks? :-)

accidbuddy• 1 year ago

The best part of every post in the ycombinator is the comments. Always learn a lot.

I think another big problem is pharmacies. The amount of data shared with health insurance companies must be huge.

TheBozzCL• 1 year ago

This literally just happened to me last week. I emailed them to ask them how to stop this:

    > I understand you want to opt out of all points and rewards and not be tracked.  
    > 
    > We're constantly working to make Bilt as rewarding as possible. Currently, we don't have an option to opt out of points or rewards. To prevent your transactions from being tracked, the most effective step is to unlink your card from your Bilt account.
    > 
    > To unlink the card:
    >
    > Go to the Wallet tab > Scroll down to the Your Linked Cards section.
    > Look for the card you would like to unlink and tap View all benefits.
    > Click the ellipsis [:] on the top right, then tap Edit > Unlink.

Gah, I hate this service and will avoid renting on buildings that use it in the future.

conductr4• 1 year ago

What’s most strange to me is why this Bilt company would pay for that data feed and somehow think it provides some value to you. It’s obviously just creepy way of saying we know too much about you

m463• 1 year ago

This happened to me with square (block). I bought furniture, and they used square and required my email address for delivery. And then after that, anywhere I used square to pay for something using the same card, they would email me a receipt. I complained and they played dumb and never did anything.

I just stopped using that card with square.

RockRobotRock• 1 year ago

What if landlords could reach their grubby hands into the data firehose their tenants spew out? I can save 5% on some useless shit at X store, you say? Sign me up!

Bilt as a concept is the biggest pile of late stage enshittification horse shit I’ve ever seen.

psanford• 1 year ago

Don't use mobile apps that could just be websites.

dylan6048• 1 year ago

Extended to add don’t use websites without blockers. If they are willing to track via app, why would we think they would not track via browser?

nicbou4• 1 year ago

The browser has less access to your system, and usually only if you give a specific website permission to use these features. Mobile operating systems are slowly changing that though.

daghamm• 1 year ago

At least on android the browser is limited by the android permission system, i.e. if you dont give browser GPS permissionit cannot give pages dito. In addition the browser will ask if you want to grant an app access to something like positioning data.

Furthermore, it is hard for a web page to run in background and receive user data.

scarface_746• 1 year ago

How will that help? It’s even easier to track across websites than apps and websites can also get your ip address to track you.

gruez20• 1 year ago

If it was LTE, I bet the lat/lon would be much more precise.

False. Apps don't have access to cellid information unless they also have location permissions, in which case they can just request your location directly.

the free apps you install and use collect your precise location with timestamp [...]

This is alarmist and contradictory given that the author admits a few paragraphs up that the "location shared was not very precise". It might be possible for the app to request precise location via location services, but the app doesn't request such permissions (at least on android, you can't check for requested permissions on iOS without installing the app and running it), so such apps are most definitely limited to "not very precise" locations.

At the same time, there is so much data in the requests that I'd expect ad exchanges to find some loophole ID that would allow cross-app tracking without the need for IDFA.

At least in theory they're not supposed to do that, but it'd be hard to enforce.

"If a user resets the Advertising Identifier, then You agree not to combine, correlate, link or otherwise associate, either directly or indirectly, the prior Advertising Identifier and any derived information with the reset Advertising Identifier. "

https://developer.apple.com/support/terms/apple-developer-pr...

anon70002• 1 year ago

Eh. Zip code level location + timestamp is still pretty invasive, even if, pedantically, that’s not very precise.

We should compare if there a differences in the data sent in countries with better data privacy laws.

eli2• 1 year ago

"Precise" has a specific meaning for iOS Location Services and this ain't it. Presumably it's just doing IP geolocation which could be the same post code, or it could be the wrong city entirely. I'd expect it to be much worse on LTE than WiFi.

gruez20• 1 year ago

Eh. Zip code level location + timestamp is still pretty invasive, even if, pedantically, that’s not very precise.

That's basically sent to multiple parties (ISPs, transit providers, CDNs, analytics/advertising/diagnostics/security vendors) everytime you visit a website. If this counts as "invasive" to you, you shouldn't be connected to the internet at all, much less buying a tracking device (a smartphone) and installing random ad-supported apps on it.

saagarjha4• 1 year ago

Cell carriers will gladly sell that information to apps. You can make calls to them over the cellular network (even if Wi-Fi is active!) and they will hand it back to you. No location services is required to do this.

jmward016• 1 year ago

A long time ago I had the idea to create an 'accountability server'. The high level idea was for it to generate unique credentials so that you could track to the source who sold your info. There are some ways to do that now, but I wonder if it is time to start exploring that idea again. If you exposed it as a VPN/proxy+app that ran on a server in your home, so that you could collect your own data and provide unique credentials on account creation, then I wonder how much that combination could figure out. Since it could act as a man in the middle it potentially could annotate credential source and see the ads and potentially track them to source. "This male enhancement pill ad is linked to your tire purchase." There is a lot of hand waving here, but I wonder if something like this could be built. The first step to stopping things like this is showing people who did it to them.

gruez20• 1 year ago

Wouldn't this require access to bid side data? The OP mentions it's pretty easy to get, but any company using this to expose advertisers is going to get their access cut off pretty fast. As the saying goes, "snitches get stitches".

jmward016• 1 year ago

My thought here is that there is likely a lot of leaked data on ads themselves, that is one of the reasons why you would need the VPN/proxy. Additionally you could (potentially) create fake browser fingerprint credentials on the fly to feed sites and have the VPN/proxy track the ads that show up for those credentials. (other credentials like email and the like could also be created by the app for you) You don't see the bid data, but you may be able to control the tracking that spurs it and you can see the results of it so a setup like this could likely make some inferences.

I don't know this industry well and the tech here has long sense eclipsed me so I really don't know what is possible but I imagine there are possibilities with this setup.

aorloff• 1 year ago

There's no question about who the players involved are.

https://developers.google.com/authorized-buyers/rtb/openrtb-...

oldherl3• 1 year ago

You can't. Because the creation is done in some proprietary software either bundled in the App or (worse) in the server somewhere.

jiri• 1 year ago

What does happen if I turn off location/gps? I guess that location has to be quite imprecise.

spencerflem6• 1 year ago

Stores have WiFi hotspots with very short range to track you that way while you're in the isle.

daneel_w• 1 year ago

Only if you don't turn WiFi off. To my understanding even the "soft off" option present in iOS stops the phone from beaconing, and just listens in order to collect data for building augmented location services. I don't know what the Androids do. These days both of them also offer randomized MAC address to curtail such tracking.

elmomle• 1 year ago

With GPS off, location can triangulated from cell tower usage to within 3/4 of a square mile (smaller uncertainty in urban areas where cell towers are closer together). I'd heard before that some data brokers do this, but in this article the writer mentions reverse DNS lookup on IP addresses, which they mention is less precise (ZIP-code level).

spencerflem6• 1 year ago

5G is far more precise as well

adrr• 1 year ago

It’s not that accurate. E911 location was a few miles off.

password4321• 1 year ago

Is WiFi access point geolocation by SSID or MAC address? Do mobile OS's require additional permissions for apps to get either of these data points?

gruez20• 1 year ago

Do mobile OS's require additional permissions for apps to get either of these data points?

Yes on both iOS and Android as far as I can remember.

Aachen• 1 year ago

Android for sure, since version 8 I'm certain but probably even 5 or 4.x (so 10+ years ago)

Always annoys me when I want to use a WiFi scanner to determine the range of an access point in different locations for example and it needs me to turn on location access first before it can get WiFi data. The open source app doesn't have an Internet connection so there's no way for it to send back data to the mothership even if it had an SSID database baked into the apk. For me, and traditionally, the location switch is to turn on or off energy-hungry GPS hardware, not gatekeep when I trust apps to collect my location. I can set those to "only while in use", deny their Internet access, or just not install them if I don't trust them with the location permission

radicality• 1 year ago

iOS definitely requires Precise location permission allowed for the app to see your WiFi name / ssid and other WiFi around you

matthewdgreen• 1 year ago

But all it takes is one app with that permission to tie you to all the others. And there are always apps that need your location at some point to provide useful data. At this point I’m not sure there’s any single app I trust.

scarface_746• 1 year ago

On iOS at least you can set the MAC address to be different per access point or to rotate on the same access point or to use your normal MAC

theptip2• 1 year ago

Why do they need to know my screen brightness, memory amount, current volume and if I'm wearing headphones?

This is clearly adding entropy to de-anonymize users between apps, rather than to add specificity to ad bids.

gruez20• 1 year ago

Everything listed changes way too often to be useful for tracking. My guess is that it's for anti-fraud purposes. Someone setting up fake devices and/or device farms is likely to get similar values, which means they can be detected via ML or whatever.

Groxx• 1 year ago

screen brightness, memory amount, current volume and if I'm wearing headphones

None of those are likely to change when you navigate from one website to another, with tracking/ads disabled, which is what they want to be able to track. Otherwise they'd just use their cookies.

One device visits a site where you sell ads. A minute later, an unknown device with identical battery, volume, headphone, brightness, model number, browser version, and boot time to the second arrives on another site you run ads on. There's a pretty good chance they're related, because the odds of all those being the same plus those two sites and recent timings involved is rather low: https://coveryourtracks.eff.org/

Plus it doesn't have to be perfect. It just has to be good enough in bulk to sell.

jmward016• 1 year ago

It would be amazing if you could build and send fake profiles of this information to create fake browser fingerprints and help track the trackers. Similarly, creating a lot of random noise here may help hide the true signal, or at least make their job a lot harder.

nickburns5• 1 year ago

Unfortunately fingerprinting prevention/resistance tactics become a readily identifiable signal unto themselves. I.e., the 'random noise' becomes fingerprintable if not widely utilized.

Everyone would need to be generating the same 'random noise' for any such tactics to be truly effective.

Xen9• 1 year ago

It's also useful for making ads more effective & manipulation overall. As long as you can connect the data you track & buy, you can use Thompson sampling. In fact, why would we think knowing the name of a person is anything but bad business?

GeoAtreides• 1 year ago

adding entropy to de-anonymize users

_removing_ entropy, by adding more information bits

ohisaysir• 1 year ago

Technically, information are the bits you DON'T know. Once you know the bits, it isn't "information" in the Shannon sense, in that it takes no energy to reset a message if you know all the bits, but takes N-units of energy for N unknown bits of information. (See; Feynman's lectures on computation)

sizzle• 1 year ago

Straight up fingerprinting us without consent it’s pure insanity.

ErigmolCt7• 1 year ago

They’ve basically turned every phone into a tracking beacon

ErigmolCt7• 1 year ago

Combine this with IP, timestamp, and some behavioral patterns, and you’ve got an extremely robust tracking mechanism that operates outside of explicit consent mechanisms.

claw-el• 1 year ago

I believe some apps actually have to automatically brighten up your screen when displaying a QR code for scanning, and then reduce back the brightness of its previous setting when moving out of the QR code. I believe the Whole Foods app does this for its first screen.

emaro• 1 year ago

Surely that could be done without sending the brightness to some 3rd party.

xkzx• 1 year ago

Screen brightness can identify weather you are outside or inside.

fumblebee• 1 year ago

Taken as one of a thousand attributes it's likely to provide at least some discriminatory lift in isolating a single user, even if tiny.

shaftway2• 1 year ago

I'm in this industry, and I have knowledge about this.

It's important to point out that it takes a long time for uptake of new versions of ad SDKs. The general assumption is that it takes about 6 months after release of a new version for 50% of ad traffic to come from that version or newer. Also, for every version you release, approximately 1% of traffic will never upgrade past that version.

In that kind of world, over-collecting data makes sense, especially if you think nobody will ever find out. Like total / and free disk space. There's no good reason to need those, right? But let's say an advertiser comes to you and says "we want to spend $1M / day to advertise our 10GB game, but only to devices that could install it." All of a sudden it's useful to know that a device only has 8GB of disk space, or only 100MB of free space.

So OK, if we didn't collect disk space, now it makes sense to collect disk space. Let's add it to the SDK. It takes a month or two to release a new version of the SDK. 3 months to get any meaningful traffic from it, and another 3 months to get up to 50% of your traffic. Assuming the ramps are linear, 4 months of 0%, and then 3 months of ramping to 50%, 30 days per month, you'll make $22.5M in the first 7 months. But if you had the logic in there to begin with, you'd have made $210M during the same time period. That makes it an easy choice for the business folks.

There are answers to this, but they all have drawbacks. You could limit data that ad agencies can collect. This reduces the value of ads. And agencies have learned that some data (like location) is low-value and high-risk, so they're removing the ability to supply it. I think it'd be better to support a model where ad code can be updated independently of the app. This way we could push out bug fixes faster, and could remove our just-in-case collection, but Apple has no signs that this is coming soon, and Google's answer has been such a shit-show that we aren't considering it viable over the next 4 years.

Edit: To address screen brightness specifically, it's a very rough proxy for age of the user.

pavel_lishin2• 1 year ago

But let's say an advertiser comes to you and says "we want to spend $1M / day to advertise our 10GB game, but only to devices that could install it."

I don't want to call you a liar, but having seen ads that are presumably targeted at me, it feels like a total fiction to say that anyone is actually capable or interested in doing this.

I get advertisements for just absolute nonsense garbage that has no bearing on my life, and no bearing on anything that could have possibly been collected from my device.

The closest thing is that when I was in Mexico for a week, some of my podcast pre-roll ads were in Spanish. (Which, I should note, I do not speak fluently enough to even understand.) Even now, the occasional ad I'm served on a podcast is in Spanish.

And that's it. They saw that my IP came from Quintana Roo, and (somewhat reasonably) decided that I need to hear Spanish-language content. Even when I physically moved back to the United States.

ksec• 1 year ago

May be Steve Jobs was right all along. We dont need Smartphone with App Store. Either 1st Party Apps and Everything else should be on Browser or Apps that uses Browser Engine.

voytec• 1 year ago

What? [0]

[0] Steve Jobs introduces App Store - https://www.youtube.com/watch?v=eU3X6Fu5JiE

collinvandyck76• 1 year ago

Probably referring to Jobs' initial stance that HTML5 is more than sufficient for "apps". Of course, he acquiesced and eventually added the App Store.

nabaraz• 1 year ago

Steve jobs embraced web apps as much as he could.[0]. But people weren't willing to give up desktop apps.

[0] https://web.archive.org/web/20070809174426/http://www.apple....

RedComet• 1 year ago

Websites tend to have more ads and tracking than native apps, and they're still getting your ip address.

amelius2• 1 year ago

was shocked by the amount and types of data sent with the bids to ad exchanges.

Can this data fall into the hands of "evil" state actors, and why is Congress OK with that and not with tiktok?

noonething• 1 year ago

yes and China/make money.

eli2• 1 year ago

Blaming China is easy and has bipartisan appeal while actual data privacy regulations are hard and do not.

Argonaut9982• 1 year ago

Are the police evil state actors? They purchase location data from private companies to target protesters[1]

[1]https://www.eff.org/deeplinks/2022/08/how-law-enforcement-ar...

pas4• 1 year ago

Congress is pretty ok with whatever Trump says, we have always been at war/peace with TikTokia.

coldpie• 1 year ago

Zuck's lobbyists pay better than China's.

noman-land2• 1 year ago

This is honestly a masterpiece.

TZubiri• 1 year ago

That you can get an approximate address based on an IP address is not very new, and is in fact a feature baked into the very IP protocol.

motohagiography• 1 year ago

great writeup. keep forensic faraday bags around.

sureglymop2• 1 year ago

A while ago a co worker told me "why would you care about your privacy? all my data is already out there anyway and what can even be done with it anyway".

What would be the ideal response to such an absurd comment? At the time I found it hard to answer because she surprised me with that opinion.

Edit to note: the explanation should be compatible with a professional context. I don't want to scare my co workers or appear crazy/paranoid.

noman-land2• 1 year ago

Seriously, anyone who ever says they have nothing to hide, show them this story.

"A Redding Police Department officer in 2021 was charged with six misdemeanors after being accused of accessing CLETS to set up a traffic stop for his fiancée's ex-husband, resulting in the man's car being towed and impounded, the local outlet A News Cafe reported. Court records show the officer was fired, but he was ultimately acquitted by a jury in the criminal case. He now works for a different police department 30 miles away."

California Law Enforcement Misused State Databases More Than 7,000 Times in 2023 https://www.eff.org/deeplinks/2025/01/california-police-misu...

gvkoo• 1 year ago

There are a few examples I use when I hear such ignorant statements: 1. Not caring about privacy cuz you’ve got nothing to hide is like saying you don’t care about freedom of speech cuz you’ve got nothing to say. 2. If you don’t care about privacy, why don’t you poop with an open door, for everyone to observe?

fragmede4• 1 year ago

Because I don't want to rest of the house to smell?

A different argument that appeals to some is that you might not have something to hide, but what about the people who do? For the greater good of society, whistleblowers are needed to expose malfeasance by the corrupt and it's going to make it much harder for any of them to come forwards if their reward is literally exile to Russia. If you're in support of a slow slide into dystopia, go ahead and argue against all privacy. Whether a given situation rises to that level is an different but adjacent topic, but appealing to something some people can believe in, such as not letting the rich and powerful get away with being utterly corrupt in their dealings is a way to find common ground, with some. not everyone cares about that though, but it's an additional argument for privacy.

sureglymop2• 1 year ago

The problem is, I could not formulate anything in this way in a professional setting. I want my co workers to understand because I feel a bit uneasy working with people who do not but I also don't want to scare them.

JW_00000• 1 year ago

See https://www.reddit.com/r/linux/comments/1drrjtu/i_dont_have_....

My examples:

- You get an HIV diagnosis (or other terrible disease). Do you want everyone you meet to know?

- You feel depressed or burnt out. Should your employer know?

- You're financially in a bad place. Do you want your kids to know? Do you want your kids' friends to know?

- Do you share your salary with everyone?

- If someone's gay, should this be public information?

- Should your religion be public? Your political points of view?

phba• 1 year ago

Losing privacy makes you more vulnerable to economic exploitation (price discrimination, salary negotiation, insurance premiums, etc). Therefore protecting your privacy is a form of economic self-defense.

asdf69692• 1 year ago

Just ask for their email password and see what they say. Usually though this comment is just them trying to change the subject because very few people know or care about any of this

volume• 1 year ago

neat details shared, might check out later.

Does this apply to Brave browser?

sunnybeetroot2• 1 year ago

Whilst I trust that the author did in fact look at the data of each request eventually, the screenshot they provided of Charles could not have been of the exact requests they intercepted given Charles is indicating that those are not yet SSL proxied (except for the 2 GET requests).

EDIT: please ignore, author did it differently to what I expected.

timsh7• 1 year ago

I decrypted them all by installing Charles SSL cert on the iphone. This is why the requests seem not SSL proxied.

sunnybeetroot2• 1 year ago

My apologies, thank you for clarifying and thank you for the brilliant article. Have updated my comment.

wkat424210• 1 year ago

This technique doesn't work anymore on android because you can no longer add certificates to the system store and apps are free to choose to accept the user store CAs or not. That was changed in Android 7. For "security" they say. Security of Googles business model I'm sure.

everdrive2• 1 year ago

I'm really happy to see this level of detail and research. So many privacy-related articles either wholly lack in technical skill, or hysterically cannot differentiate between different levels of privacy concerns and risks.

People commonly point to Mozilla's research regarding vehicle's privacy policies. (https://foundation.mozilla.org/en/blog/privacy-nightmare-on-...) But that research only states what the car company's lawyers felt they must include in their privacy policies. These policies imply (and I'm sure, correctly imply) that your conversations will be recorded when you're in the vehicle. But, they never drill down into the real technical details. For instance ..... are car companies recording you the whole time and streaming ALL of your audio from ALL of your driving? Are they just recording you at a random samples? Are they ONLY recording you when you're issuing voice commands, and the lawyers are simply hedging their bets regarding what sort of data _might_ come through accidentally during those instances? Once they record you, where is the data stored, and for how long? Is it sent to 3rd parties, etc? Which of these systems can be disabled, and via what means? Does disabling these systems disable any other functionality of the vehicle, or void its warranty? Lastly, does your insurance shoot up if you have a car without one of these systems? etc ...

The list of questions could go almost indefinitely, and presumably, would vary strongly across manufacturers. So much of the privacy news out there is nothing but scary and often not very substantiated worst case scenarios. Without the details and means to improve privacy, all these stories can do is spread cynicism. I'm really glad to see this level of discourse for the author.

jjeaff• 1 year ago

I'll answer the, "Does disabling it void your warranty?" question. The answer is almost always "no". Unless the modification you make to something actually directly or indirectly caused damage to it, companies in the US cannot "void the warranty".

lesuorac• 1 year ago

I'm sure the company will argue the warranty is voided akin to how trucks have "not liable for damage from rocks" or w/e (they are).

IIRC, this is under the Magnuson-Moss act but I didn't find it when skimming wikipedia.

https://en.wikipedia.org/wiki/Magnuson%E2%80%93Moss_Warranty...

shakna• 1 year ago

This is usually side-stepped by being a violation of Terms of Service, which is a much lower legal hurdle.

The warranty is intact, but the device is bricked, because it can't bypass any of the authentication that is required to do... Pretty much everything.

AlotOfReading• 1 year ago

Those aren't questions that have fixed answers. The data available is pretty far beyond what I'm personally comfortable with though.

One OEM I'm familiar with had such a policy. My org determined that we needed a statistical reference to compare against within a certain area. Some calls were made to the right people and shortly after we had a (mildly) anonymized map of high precision tracks for every vehicle of that brand within the area over some period.

everdrive2• 1 year ago

That’s pretty interesting. What was the purpose of the statistical sample? What did your company want to know precisely?

AdieuToLogic2• 1 year ago

Lastly, does your insurance shoot up if you have a car without one of these systems?

This question I can answer with a reasonable degree of certainty; no, it does not.

Insurance companies increase rates for automobile coverage for many reasons, real or illusionary. But "does your insurance shoot up" strictly for not having a recording device in a vehicle is not one of them.

Do some insurance companies charge less when provided access to policy owner driving patterns which the companies infer reduce their risk? Sure.

But that is a different question.

sfink3• 1 year ago

Do some insurance companies charge less when provided access to policy owner driving patterns which the companies infer reduce their risk? Sure.
But that is a different question.

In what way? A discount for allowing surveillance is identical to an extra charge for disallowing it. They're identical, unless the "base" rate is set externally somehow.

$5 for lemonade, $3 off if you skip the lemon == $2 for sugar water, $3 extra to add lemon.

lilsoso• 1 year ago

Would be interesting to know how much data leaks on a new iPhone with some of the iOS privacy settings enabled and a handful of popular apps installed (WhatsApp, Instagram, Google Maps, Uber, etc).

And then if you use a commercial VPN with DNS ad-blocking enabled, how much more does this help?

ignoramous5• 1 year ago

Going by TFA, not much.

diimdeep• 1 year ago

All these companies operate from within USA jurisdiction, that should send the world clear message.

Snowden in one of interviews talks about exactly this kind of tracking with Amazon example (ts 01:18:00) https://x.com/JohnStossel/status/1885382675810181612

Basically, all these companies, ad networks, data brokers, big tech with absence of basic privacy laws (not to be confused with 4th amendment that binds Fed and State gov only, but does not restraint companies) act with wilful conspiracy with US government regulators, washing each other hand like a monopoly. This data gets enriched and collided and is perpetually on a permanent record.

https://en.wikipedia.org/wiki/Permanent_Record_(autobiograph...

So next time you talk about totalitarian regimes around the world look in the window.

ktimespi• 1 year ago

Minor nitpick, but aren't ads sold to the highest bidder?

AyyEye• 1 year ago

There's no "personal information" here, but honestly this amount of data shared with an arbitrary list of 3rd parties is scary. Why do they need to know my screen brightness, memory amount, current volume and if I'm wearing headphones?

Screen brightness, boot time, memory, and network operator could probably fingerprint any device all by itself.

maximilianthe1• 1 year ago

A lot of people have "autobrightness" on. I'd think brightness doesn't help much here

landr0id• 1 year ago

Kind of a joke, but it could be useful for determining if they should serve light-mode or dark-mode ads. But I suppose they could just detect if dark/light mode are enabled.

sky2224• 1 year ago

Automatic brightness probably helps honestly. It could help confirm whether someone is in fact in an area that has high levels of lighting around them (e.g., in a store, at a beach on a sunny day, etc.)

Everything little piece of data that is gathered and used can help even if it isn't immediately apparent.

Now I could be wrong on this, but I feel like advertisers don't need to know something is true about a user, they just need to be confident something is true about a user and that's where data points like screen brightness can be of help to them.

afarah1• 1 year ago

NetGuard with DROP OUTBOUND policy once again proves helpful. The only app that shows ads that I have on my phone is a PDF scanner, and I don't allow it internet access.

switch007• 1 year ago

GrapheneOS also allows you to toggle the Network permission of any app

timsh7• 1 year ago

wow @apokryptein thanks for posting my article here... I'm shocked it's #1 rn. if anyone has any questions regarding the post - I'm here to answer & talk!

pas4• 1 year ago

how the MAID/IDfV gets into the PII-ID databases?

It seems that part is completely missing. (Or I missed it.)

So for example can/do airlines sell it? Or telecom/utility companies, when you use their app?

timsh7• 1 year ago

I don’t know the answer to this, which is why I didn’t mention it in the post. However, I could speculate that these data-broker companies scrape leaked [hacked and stolen] data from various panels and then match records on their end. kinda OSINT for bad reasons.

forgingahead• 1 year ago

Great article, thanks for taking the time to research and write it all up! Definitely learned some new things from it.

Dhruv_Gheewala• 1 year ago

Wow, such a beautiful article you have written. Usually, I’m not into reading much but after very long I’ve completed a full article with such interest. Thanks for it !!

amarcheschi• 1 year ago

Another "funny" thing regarding Microsoft xandr

I sent them my uid2 and they still say they can't link to an identity and don't have a match in their database

lysace• 1 year ago

I wonder: to which extent are purchased/brokered app real-time location data feeds used by various intelligence services to target missile strikes in war zones? In e.g. Ukraine/Russia.

ActorNightly5• 1 year ago

The leaked tools that NSA used, like XKEYSCORE, used publicly available data collection methods, including purchasing advertiser lists, to cross correlate all the data and form a profile. So anybody could do this stuff.

supertrope• 1 year ago

https://taskandpurpose.com/news/russia-ukraine-cell-phones-t...

Not riding off ad geolocation but hijacking a UA app: https://www.crowdstrike.com/wp-content/brochures/FancyBearTr...

beders• 1 year ago

I'm surprised people think they have any kind of privacy - especially when using free services. They are not free. You pay with whatever data can be extracted from your devices and behavior.

Also, there's a looong list of companies who know the location of your mobile device, starting from the cell phone tower operator to Apple/Google and many in between.

pas4• 1 year ago

The article does not explain how PII gets into the databases, and the critical link the IDfV... how do databases connect it to people's name/address?

It gets leaked if the app I use gets my name/address, like Uber, right?

AlgebraFox• 1 year ago

True. But even paid apps have access to these data and can collect it without our knowledge. A genius called Stallman proposed solution decades ago. Free software aka. open source software. But outside of tech community, open source is not a known term. Maybe we should market it wherever possible, if we want true privacy and freedom.

xyst• 1 year ago

Apple’s “privacy protections” are nothing more than marketing.

“Ask app not to track” is a wash and privacy theater at best. One of the reasons I still run ad blocking on _all_ websites and at the network layer. Sorry “content creators” but you need to get your revenue from elsewhere (ie, sponsored content).

Now I want a phone that scrambles all of this data on a per app (or phone) basis.

Malicious app wants this data? Sure you can have it. But you will get randomized values for every bit of information — resolution, lat/lon, brightness, battery level (user can set range of 90-100%), ….

anurag• 1 year ago

I'm a very happy paying customer of NextDNS (https://nextdns.io) which blocks known adware and tracking hosts across all mobile and desktop platforms.

nickburns5• 1 year ago

Which does absolutely nothing if your device or the app in question is permitted or otherwise not prevented from making DNS-over-HTTPS (or, less commonly because of its discrete port, DNS-over-TLS) queries.

madeofpalk• 1 year ago

Don't all the ad-blocking DNS providers also support DNS-over-HTTPS now as well? I use it with AdGuard Home, and I saw PiHole supports it as well.

Argonaut9982• 1 year ago

Facebook hard-code IP addresses when their domains are blocked. I found this out while using NextDNS alongside that logging functionality that iPhones have. It’s insane the lengths that they go to.

ssklash• 1 year ago

It's not insane at all. It is the entirety of their business model, so it makes sense that they will do everything possible to keep that sweet surveillance cash flowing.

ornornor• 1 year ago

One more reason I don’t use Facebook and will never install their app on my phone.

ignoramous5• 1 year ago

Facebook hard-code IP addresses when their domains are blocked

Sounds like an anti-censorship or a generic connectivity robustness feature [0]? WhatsApp and Instagram do this, too.

[0] https://news.ycombinator.com/item?id=41959945

mdasen• 1 year ago

This is a wonderful write up. The part that isn't clear to me is how they're getting the geolocation data if location services are turned off. Are they just going off geo-ip lookups? If you grant access to Bluetooth or finding devices on your local network, they can get more information to track your location. Absent that, how would they get better than geo-ip?

secondcoming4• 1 year ago

https://www.maxmind.com/en/home

petee• 1 year ago

They say the leaked list is 2000 apps, but the linked spreadsheet has over 12000...

And are these getting pulled from the store due to privacy violations? I'd assume Google would be aware at this point?

araes3• 1 year ago

Parts I found relevant:

  - It was a clean state of a somewhat old phone (iPhone 11, factory defaults + new apple id)
  - A single (old) app was installed (Stack by KetchApp, 10-12 years old)
  - Was sending out an update a second pretty much instantly (5 kB - ~300 KB every second)
  - Within a minute: IP, Lat / Lon, country, phone model, carrier / network operator, vendor, OS version, connection type (wifi), headphone status (?), volume setting (?), screen brightness setting (?), battery status (?), CPU count, system RAM, free RAM allocation, free hard drive capacity, system boot time (?)

Might as well just screen grab the Task Manager equivalent and hand it to them. Have better, quicker data about my own current RAM allocation and free hard space than I do. It hands them when the system booted for an ad? The headphone, volume, brightness, and battery was just "what" kind of headshake about invasiveness. Somebody'd hand wave they need it (we want it, we want it). They obviously don't.

Edit: It's almost Remote Desktop, on an iPhone. Realtime (~1 Hz) RAM / ROM allocation. Not sure how many Apple user even know how to check their realtime RAM / ROM allocation. The free hard drive space especially is just asking for botnet downloads.

Edit: Right, and ... disabling tracking doesn't mean anything because numerous updates blatantly ignore the setting ("uc": "1", // User consent for tracking = True;) and it's just a flag while they still send your vendor specific customer identifier anyways.

Really interesting article, and great investigation, just disturbing how much on an effectively clean phone.

mschuster91• 1 year ago

The headphone, volume, brightness, and battery was just "what" kind of headshake about invasiveness. Somebody'd hand wave they need it (we want it, we want it). They obviously don't.

Well the why the ad industry wants it is clear: fingerprinting and segmentation. Someone consistently low on battery? Push them ads for powerbanks.

araes3• 1 year ago

This is actually part of what I find so wrong about this entire idea.

With all this fine granularity, it seems like ads would be incredibly relevant. Specifically about what you need with something that might actually result in a click-through to purchase a product. Especially if they get real-time updates on my hard-drive status and battery state.

I don't remember the last time I got an ad that was actually relevant. Pretty sure the last ad that was even clicked on was one of those little windmills that swirls crazily, cause it seemed like it might make a cool lawn ornament. Turned out it was tiny. Years of online purchases, and they don't even suggest stuff I want.

It just seems like an excuse.

TheJoeMan• 1 year ago

I dislike that as a developer, knowing something like the headphone status could be useful for the functionality of the app. But some other unscrupulous person is just exfiltrating it! This is part of the reason I agree with Apple’s stand against apps with sub-apps/“desktop like” due to not fine-grained enough permission settings. There is a significant privacy downside to “superapps” and now Elon is pushing for the X everything app.

wkat424210• 1 year ago

Yeah and if you ask for permission for every little thing then users are going to get bombarded even when it's needed for legit purposes. It's a difficult tradeoff to make, even if you want to do the right thing (and I'm not really sure that Apple and especially Google really do)

qingcharles6• 1 year ago

One big privacy issue is that there is no sane way to protect your contact details from being sold, regardless of what you do.

As soon as your cousin clicks "Yes, I would like to share the entire contents of my contacts with you" when they launch TikTok your name, phone number, email etc are all in the crowd.

And I buy this stuff. Every time I need customer service and I'm getting stonewalled I just go onto a marketplace, find an exec and buy their details for pennies and call them up on their cellphone. (this is usually successful, but can backfire badly -- CashApp terminated my account for this shenanigans)

hughesjj• 1 year ago

CashApp terminated my account for this shenanigans

Did you call to complain about the termination?

qingcharles6• 1 year ago

What's funny is that the exec I got on the phone was super supportive and helpful and was genuinely amused to hear from me and hear what was happening. He put me in touch with their "Executive Support Team" and it was after this that I guess someone realized they didn't like the route I had taken.

I feel somewhat vindicated after this announcement (though it does nothing to bring my account back):

https://www.engadget.com/cybersecurity/cfpb-fines-block-175m...

Accessing any kind of customer service for Cash App was a challenge, too, according to the CFPB. Block included a customer service number on Cash App cards and in the app's Terms of Service, but calling it would it ultimately lead users to "a pre-recorded message directing consumers to contact customer support through the app."

nehal3m2• 1 year ago

Assuming these marketplaces operate within the bounds of the law, would it break HN’s ToS to post them? I’d be interested in pursuing the same strategy.

gruez20• 1 year ago

Most online forums ban "doxing" even if it's theoretically legal.

gruez20• 1 year ago

One big privacy issue is that there is no sane way to protect your contact details from being sold, regardless of what you do.
As soon as your cousin clicks "Yes, I would like to share the entire contents of my contacts with you" when they launch TikTok your name, phone number, email etc are all in the crowd.

Fortunately this is changing with iOS 18 with "limited contacts" sharing.

https://mobiledevmemo.com/wp-content/uploads/2024/09/image.p...

The interface also seems specifically designed to push people to allow only a subset of contacts, rather than blindly clicking "allow all".

The far bigger issue is the contact info you share with online retailers. Scraping contact info through apps is very visible, drawing flak from the media and consumers. Most of the time all you get is a name (could be a nickname), and maybe some combination of phone/email/address, depending on how diligent the person in filling out all the fields. On the other hand placing any sort of order online requires you to provide your full name, address, phone number, and email address. You can also be reasonably certain that they're all accurate, because they're plausibly required for delivery/billing purposes. Such data can also be surreptitiously fed to data brokers behind the scenes, without an obvious "tiktok would like access to your contacts" modal.

create-username• 1 year ago

People will share their whole list because it’s simpler

x0x02• 1 year ago

I think it's not properly appreciated that Apple fully endorses all of this. For two reasons: (1) the provision of the output of billions of dollars of developer time to their users for no up front cost (made back via ads) is super valuable to their platform; and (2) they uniquely could stop this (at the price of devastating their app store), but choose not to.

In light of that, perhaps reevaluate their ATT efforts as far less about meaningful privacy and far more about stealing $10B a year or so from Facebook.

sneak2• 1 year ago

How about a no/limited internet setting? So many apps spy on you and they don’t need network at all to function.

ActorNightly5• 1 year ago

Fortunately this is changing with iOS 18 with "limited contacts" sharing.

Its not. Apple still owns your stuff. There is no difference between Apple and other 3p retailers. Apple just wants more of your money.

jcul2• 1 year ago

On android you can choose whether to grant access to contacts. And most apps work fine without.

GrapheneOS, which I use, also has contact scopes, so troublesome apps that refuse to work without access will think they have full access. You can allow them to see no contacts or a small subset.

There's also multiple user profiles, a "private space", and a work profile (shelter) that you can install an app into, which can be completely isolated from your main profile, so no contacts.

It surprises me how far behind iOS is with this stuff. Recently I wanted to install a second instance of an app on my wife's iPhone so she could use multiple logins simultaneously, there didn't really seem to be a way to do it.

pojzon• 1 year ago

Interesting thing is that security practices mention that you should always grant the minimal set of permissions.

So in case Apple allowed for “share all” it means that they did it by design and are changing it now only because of backlash.

WA• 1 year ago

Useless without limiting the kind of data I want to share per contact. iOS asks for relationships for example. You can set up your spouse, your kids, have your address or any address associated with contacts. If I want to restrict app access to contacts, I also want to restrict app access to specific contact details.

croes• 1 year ago

Doesn’t help against your cousin who shares your data.

TheKarateKid• 1 year ago

What marketplaces do you use?

terminalgravity• 1 year ago

Im also curious about this. Is it just a website you place an order or do you have to go through some kind of agent?

A4ET8a8uTh0_v2• 1 year ago

<< find an exec and buy their details for pennies and call them up on their cellphone. (this is usually successful, but can backfire badly -- CashApp terminated my account for this shenanigans)

Honestly, kudos. The rules should apply to the ones foisting this system upon us as well. This is probably the only way to make anyone in power reconsider current setup.

<< As soon as your cousin clicks "Yes, I would like to share the entire contents of my contacts with you" when they launch TikTok your name, phone number, email etc are all in the crowd.

And people laughed at Red Reddington when he said he had no email.

jeanlucas• 1 year ago

Exactly this was tried by the likes of James Oliver and journalists/comedians of that caliber running ads and gathering data from politicians in Washington.

It was some years ago and resulted in nothing

IgorPartola• 1 year ago

There was a post from someone a long time ago who has an email address and name similar to Make Cuban but not quite. He got quite a few cold call emails meant for Cuban. A lot of them were quite sad (people asking for money for medical procedures and such).

Aurornis3• 1 year ago

The rules should apply to the ones foisting this system upon us as well. This is probably the only way to make anyone in power reconsider current setup.

Unless your problem is with the company doing the privacy violations, this doesn’t make any sense.

ajcp2• 1 year ago

It's odd that of the two replies referencing people, both got their names obviously wrong. Is that a new phishing tactic?

stavros4• 1 year ago

Where do you buy their details from?

vlan0• 1 year ago

Actually this could prove very useful for a resistance movement. Take them down with with their own medicine.

josephg• 1 year ago

Yeah, I wonder if it might help to create a little newsletter for politicians and regulators. Send emails telling them exactly where they are, what apps they use, and so on. And send them the same information about their children.

amelius2• 1 year ago

I'm not familiar with these marketplaces. Could you name a few examples?

qingcharles6• 1 year ago

I'm using SignalHire most of the time recently

XorNot2• 1 year ago

The thing is...contact details aren't really private information, basically by definition.

The distinction is contact details privacy is based on the desire not be interrupted by people you didn't agree to be interrupted by - i.e. it's a spam problem - and realistically to solve this requires a total revamp of our communications systems (long overdue).

The basic level of this would be forcing businesses to positively identify themselves to contact people - i.e. we need TLS certificates on voice calls, tied to government issued business identifiers. That would have the highest immediate impact, because we could retrain people not to talk to anyone claiming to be a business if there phone doesn't show a certificate - we already teach this for email, so the skill is becoming more widespread.

A more advanced version of this might be to get rid of the notion of fixed phone numbers entirely: i.e. sharing contacts is now just a cryptographic key exchange where I sign their public certificate which the cellphone infrastructure validates to agree to route a call to my device from their device (with some provisioning for chain of trust so a corporate entity can sign legally recognized bodies, but not say, transfer details around).

This would solve a pile of problems, including just business decommissioning - i.e. once a company shuts down, even if you scraped their database you wouldn't be able to use any of the contact information unless you had the hardware call origination gear + the telecom company still recognized the key.

Add an escrow system on top of this so "phone numbers" can still work - i.e. you can get a random number to give to people that will do a "trust on first use" thing, or "trust till revoked" thing (i.e. no one needs to give a fake number anymore, convention would be they're all fake numbers, but blocking the number would also not actually block anyone you still want to talk to).

EDIT: I've sort of inverted the technical vs practical details here I realize - i.e. if I were implementing this, the public marketing campaign would be "you can have as many phone numbers as you want" but your friends don't have to update if you change it. The UI ideally would be "block this contact and revoke this number?" on a phone which would be nice and unambiguous - possibly with a "send a new number to your friends?" option (in fact this could be 150 new numbers, one per friend since under the hood it would all be public key cryptography). I think people would understand this.

gog2• 1 year ago

What definition of contact details makes them not private?

Contact details (your phone number, email or address) are definitively private information, you should be the one that decides who gets them and who doesn't.

the_pwner224• 1 year ago

Check out Simplex chat. I just read about it from this HN submission yesterday: https://news.ycombinator.com/item?id=42904966

gsuuon• 1 year ago

I think this could be one of the more legitimate uses of blockchain - distributed communications, contacts, and a refundable pay-per-call system to make spam calling uneconomical. Communication in general does desperately need an overhaul, phones are effectively useless as phones nowadays.

liontwist2• 1 year ago

find an exec and buy their details for pennies and call them up on their cellphone

There is a vendor for this very thing in relation to business and government position called “zoominfo”

tonyhart72• 1 year ago

can we request our data deletion in these vendor????

tcoff91• 1 year ago

Could you please tell me how to buy this stuff? This sounds like a great way to get customer service when normal channels fail.

Atotalnoob• 1 year ago

What kind of marketplace do you use?

Aurornis3• 1 year ago

(this is usually successful, but can backfire badly -- CashApp terminated my account for this shenanigans)

When I was at a medium-sized consumer-facing company whose name you’d recognize if you’re in the tech space (intentionally vague) we had some customers try this. They’d find product managers or directors on LinkedIn then start trying to contact them with phone numbers found on the internet, personal email addresses, or even doing things like finding photos their family members posted and complaining the comments.

We had to start warning them not to do it again, then following up with more drastic actions on the second violation. I remember several cases where we had to get corporate counsel involved right away and there was talk of getting law enforcement involved because some people thought implied threats would get them what they wanted.

So I can see why companies are quick to lock out customers who try these games.

opello• 1 year ago

I realize why this is bad. Full stop.

I wonder if it ever evoked an dive into exactly what happened to leave these customers with thinking this was the most likely avenue for success? Hopefully in at least some cases their calls with CSRs were reviewed and in the most optimistic of best cases additional training or policies were put into place to avoid the hopelessness that evokes such drastic actions.

maeil4• 1 year ago

So I can see why companies are quick to lock out customers who try these games.

Most of the companies who customers try these "games" against are places like Google and Meta that literally do not provide a way for the average customer to reach a human. None.

Those have got it coming for them, the megacorps' stance on this is despicable and far worse than the customers directly reaching execs who could instantly change this but don't because it would cut into their $72 billion per year net profit.

This is a case where laws simply did not catch up to the digital era. In the brick and mortar era it was by definition possible to reach humans.

I get that your company was smaller and probably did allow for a way to reach a human but that's not generalizable.

balderdash• 1 year ago

Honestly not condoning people crossing the line of threats/abusive behavior, but it sounds like you worked at one of those companies that make it impossible to get ahold of someone, don’t respond to customers, or other poor customer service issues, and then are surprised people resort to this

vineyardmike• 1 year ago

I think the sort of desperate mailing works better when you reach out to execs and VPs, not PMs and managers. Some founders had well-known emails and it was common to hear stories about escalating (eg jeff@amazon). It’s a well documented technique that many people have had great success with.

I’m not an exec, but I work on a major product in a major company. A significant portion of Americans use my work. My corporation has a reputation for poor customer support ATM. If I started getting personal emails or phone calls, I’d contact corporate security or lawyers just out of fear and confusion. That said, I’d be peeved on behalf of my customers if that same treatment was applied to messages directed at our household-name-CEO.

_heimdall2• 1 year ago

It is possible to just not use a phone number.

I mostly connect through Signal. I do technically have a phone number that my close friends and family have, but its a random VoIP number that I usually change every year or so. Surprisingly no one has really cared, I send out a text that I got a new number and that's that.

ironmagma2• 1 year ago

How? Most of the services I use, from Walgreens to banks to retirement accounts, require a phone number either for 2FA or just to verify that you’re you when signing up. After changing my phone number this year and having to go through the rigamarole for each service, I decided never again.

TechDebtDevin• 1 year ago

I can relatively easily skip trace people but where are you buying specific peoples information? Do you mean youre skip tracing or buying directly from data brokers?

wkat424210• 1 year ago

And the combination of contacts are also unique enough to identify you. Even though they change over time. Some fuzzy matching, take in another few bits of fingerprint like device type and country and voila no advertiser ID required.

Ps smart idea to use it for that purpose. If I failed to get proper service I'd just review bomb the company everywhere and soon enough I'd get a call fixing my problem and asking to remove them :)

miki1232114• 1 year ago

And I buy this stuff. Every time I need customer service and I'm getting stonewalled I just go onto a marketplace, find an exec and buy their details for pennies

The article author claims that you can't get this stuff for under $10k. Where do you find it for pennies?

habosa• 1 year ago

Try cold outreach software like Apollo.io

As a test I downloaded it and got my wife’s full email and cell phone number easily from their free trial. And the full price would be on the order of pennies per contact.

qingcharles6• 1 year ago

Right now I use SignalHire most of the time

_pktm_• 1 year ago

Thanks for sharing this approach. I gotta say that I’d love to hear more about how/where you are buying this data, and the CashApp story too.

ErigmolCt7• 1 year ago

So your data is only as private as the least privacy-conscious person in your social circle.

speleding2• 1 year ago

As a result of sales drones getting hold of my number, I have to put my phone on silent and never pick up unless I recognize the number. Very unfortunate. What if there is an emergency with my kids?

emsixteen• 1 year ago

If you're using iOS you can set certain contacts to bypass silent mode so that you still hear their notifications/calls. I know it doesn't help with unknown numbers, but just saying in case you're not aware. I'd be surprised if you can't do the same on Android.

MetaWhirledPeas2• 1 year ago

What if there is an emergency with my kids?

Hopefully rather than just stupidly giving up, they'll send an accompanying text message.

laserbeam• 1 year ago

> And I buy this stuff. Every time I need customer service and I'm getting stonewalled I just go onto a marketplace, find an exec and buy their details for pennies and call them up on their cellphone.

I find it funny how easy it is to find scammy websites which promise to remove your data (right...), but how hard it is to find the actual marketplaces where people trade this data. It also makes you think about what other systems have similar asymmetric interfaces for the public and the ones in the know (yes, I know there are plenty).

tonyhart72• 1 year ago

can we request deletion of our private data in this vendor???

adulion• 1 year ago

I have done this as well. I once got an travel insurance claim rejected by some outsourced handler and found out who the CEO of the insurance startup was. I emailed him and magically it got resolved

casenmgreen4• 1 year ago

I stopped keeping a mobile number many years ago.

Phone is wifi only.

In particular, I do not use the contacts functionality built into the phone.

(This is /e/OS, which helps, but I'll be moving to Mobian as soon as it is viable.)

skrebbel• 1 year ago

What do you do when the car repairman wants to call/text you when the car is finished? Or any other similar situations?

secondcoming4• 1 year ago

How do you do online banking?

oldherl3• 1 year ago

You are very lucky. In China, virtually all websites are required by law to use your phone number (verified by SMS) to register and/or to use. And all numbers must be linked to your ID.

ebri• 1 year ago

How do you do this? This is genius

dheera• 1 year ago

I just block all unscheduled calls and calls from unknown numbers. If there isn't a calendar event and it isn't coming from a known family member or close friend, the call doesn't go through.

I also have multiple cell and virtual numbers and give different ones out to businesses, banks, friends, and family. Businesses that don't need to ship me stuff also get a different address than ones that do.

I don't register to vote anymore because they leak my residential info. When they can agree to stop leaking it, I will participate again.

leoqa2• 1 year ago

You may be committing some type of violation of privacy laws if you're contacting them via phone and they're on the do not call list. Because they work at a company does not mean that you and the employee have a business relationship.

stronglikedan• 1 year ago

you can call anyone for any reason if you aren't doing it for your own business

cooper_ganglia• 1 year ago

I'll call anyone I please, thank you very much!

triceratops3• 1 year ago

Don't do not call laws apply to marketing companies? OP isn't marketing or selling anything.

matheusmoreira2• 1 year ago

CashApp terminated my account for this shenanigans

The audacity of these people. They probably do far worse things to their customers on a daily basis.

youcouldalways• 1 year ago

Changing your number every year could mitigate as it would introduce entropy and stale data into the system. When done at scale, data lifetime would behave similar to the automatic deletion of messages on whatsapp. Somewhat mimicking an in person verbal conversation where only people's memories remember what was said and even their version gets changed every time memory recall takes place. Systems already exist in real life that protect privacy, it's just that we do a poor job of reproducing them with tech.

Changing your telephone number every year could be an artificial holiday like valentines day or halloween. It can be done if people deem it's important.

idoitalready• 1 year ago

I already do this. It gives me an opportunity to trim the contact list to people I actually talk to regularly which I send the new number too. Also shows me my footprint online since I have to update the number. I only change it for places I actually use regularly or are important.

MetaWhirledPeas2• 1 year ago

there is no sane way to protect your contact details from being sold

I can think of one: make it illegal to buy, sell, or trade customer data. All transfer of data to another party must have a record of being initiated by the individual.

wand3r• 1 year ago

Where are you buying this? Might be handy for a job search. Zoominfo basically doesn't have a b2c offering and I am not paying several thousand for an experiment in improving my career

scyzoryk_xyz• 1 year ago

That’s a textbook „surveillance capitalism” move.

Any chance of a tutorial or some materials on doing exactly this sort of thing?

z02d• 1 year ago

There was a nice talk on the recent Chaos Communication Congress (from Chaos Computer Club):

https://media.ccc.de/v/38c3-databroker-files-wie-uns-apps-un...

(English audio available)

zzo38computer2• 1 year ago

Even just to look at the picture near the top (which is also repeated near the bottom), if you do not allow the app to track you that only disables one of the items of the information and not all of them. This is explained later in the document, that it is not explained very well to end users. I agree that it could be explained better. Perhaps, "Allow app to track your activity..." can have a option to display a more elaborate description, explaining that it only affects the Advertising Tracking ID (and what that means) and has no effect on other methods of tracking.

And, looking further in the document, we can see there is more.

Some of them, such as IP address and timestamp it is reasonable to use for programs that access the internet (although it should be possible for the user to set up a proxy and/or adjust the clock in order to change these things, the server would still use its own timestamp anyways).

Available memory also makes sense to be readable (although ideally, the user should be allowed to limit the amount of memory available to specific programs, in order that there is enough memory remaining for other programs; the reported total memory should then include only the memory available to this program and not to all programs), and the same should be true of the number of CPU cores and the amount of available disk space.

Others probably should not normally be known by most programs (but some are usefulf or some kind of programs), and even when they are, the operating system ought to allow users to reprogram what information is available and what filters, logging, etc will be used.

The presence of wired headphones probably should not be accessible by software, and the redirection should be handled by hardware. Perhaps an exception makes sense if the settings need to be different, e.g. mono vs stereo, although even then, programs should only see those settings (and only if they have audio output), and the user should be allowed to override them due to preferences (e.g. some users might want mono even if connected to external speakers or headphones; on my computer sometimes only one speaker works and sometimes both, so it is useful to me to be able to switch to mono).

Furthermore, there is the consideration, if the advertisers/spies are stealing your power and network bandwidth and quota in order to do these things; then, that is theft.

ec1096852• 1 year ago

There is more to it when a user disallows an app to track your activity. From Apple and enforced in their review guidelines:

“The app is also not permitted to track your activity using other information that identifies you or your device, like your email address.”

secondcoming4• 1 year ago

if the advertisers/spies are stealing your power and network bandwidth and quota in order to do these things

They're not. The app developer is.

EveOffline• 1 year ago

Very interesting and disturbing research, definitely a wake up call for me. Does anyone know/can anyone recommend me software that can block these sorts of requests from going through? I know of pihole which blocks adds but does it also filter out these sorts of things?

ActorNightly5• 1 year ago

You need to have a wifi only android phone, rooted, no google apps, and uninstall anything that talks to the internet. That includes analyzing network traffic, open ports, and so on.

I did this with a Kali Nethunter distro back in the day for "reasons", privacy not being one of them. This makes the phone very hard to use for regular things.

daqhris• 1 year ago

"no-root firewalls" to control data flows on devices (sorry for not publicly naming my preferred one).

simonw• 1 year ago

Anyone understand why an apparently accurate latitude/longitude showed up in one of those traces despite location services not being enabled for the app in question?

ec1096852• 1 year ago

A previous request maybe mapped their IP back to the geo, and that data was used subsequently, maybe?

withinboredom• 1 year ago

Probably Mozilla location services (which I happily block) which does pretty accurate passive location tracking.

ActorNightly5• 1 year ago

Phones send out probe requests to get a list of open wifis. If you have a static access point, with a known geo location, software can be running on that point to remember a mac address of the phone from a probe and store it. Thus enabling real time tracking.

Im like 60% sure this is how they figured out who the Bomber was in Austin TX.

rpigab3• 1 year ago

This is also why some Chinese apps put everything inside a single app and request every permission there is, then track you through Wifi SSIDs seen by your device.

rgovostes• 1 year ago

Not entirely... "Apple platforms use a randomized Media Access Control address (MAC address) when performing Wi-Fi scans when not associated with a Wi-Fi network." https://support.apple.com/guide/security/privacy-features-co...

rollulus• 1 year ago

Thanks for asking. Came here to ask since I was curious about this too. I don't find any of the replies here convincing:

- List of open wifis: AFAIK, and in my experience, apps need special permissions to do anything at the wifi level. And yes, iOS location services use wifi info but it's disabled, that's the point;

- IP back to geo: then why not send the IP itself directly?

- Mozilla location services: same as above, why not send the info you send to Mozilla directly to the data harvester which can call Mozilla itself?

krupan• 1 year ago

Anyone working on this tech used for tracking people should feel bad.

OtomotO• 1 year ago

No they don't, because:

I have location services disabled 99% of the time

And I often leave the house without my smartphone (when walking or bicycling), much to the dismay of my better half... I am sorry, I forget!

pyromaker• 1 year ago

I don't think there is a hope when it comes to our privacy and ads and our data being sold - none. Even if I'm somewhat off the grid or low in activities, the indirect way of targeting me still exists, by my family members, friends, people associated with me. I surrender.

secondcoming4• 1 year ago

There is hope. The upcoming US State privacy laws are resulting in IP addresses having the last octet blanked out, and IDFA's zeroed out, at least for SSPs and DSPs. Companies such as Apple and Google will still have this info since they control the OS.

parkersweb• 1 year ago

This makes me wonder - is there not a ‘Little Snitch’ equivalent for iOS?

BubbleRings• 1 year ago

I clicked the link at the beginning of your article, that led to the Google sheet with the list of apps. That list had 12,373 lines, not “over 2,000”, fyi. And while most of the apps looked like small time games that I have never downloaded and would probably not download, I saw included there “Microsoft Office 365”. Interesting.

timsh7• 1 year ago

agreed, however there are duplicates in that list + same app for ios / android. if I’m not mistaking I did a simple unique count on it (or catch the 2000 number from 404media post)

thadk• 1 year ago

Here's my messy list of all the apps I recognized in that Google Sheet: meetup, tinder, crunchyroll zynga/wordswithfriends, Microsoft Outlook com.microsoft.office.outlook, Weather channel, Microsoft 365 (Office) com.microsoft.office.officehubrow Opera Mini browser beta com.opera.mini.native.beta, BuzzFeed - Quizzes & News com.buzzfeed.android Tetris® Block Puzzle com.playstudios.tetris4 Sonic the Hedgehog™ Classic com.sega.sonic1px Grindr Flipboard: The Social Magazine Flightradar24 | Flight Tracker Bejeweled Blitz com.ea.BejeweledBlitz_row FarmVille 3 – Farm Animals Plants vs Zombies™ 2 com.ea.game.pvz2_row SimCity BuildIt 913292932 Tetris® 1491074310 Opera Mini: Fast Web Browser com.opera.mini.native TuneIn Radio: Music & Sports 418987775 Yahoo Mail – Organized Email com.yahoo.mobile.client.android.mail Angry Birds 2 com.rovio.baba Skip-Bo 1538912205 CamScanner - PDF Scanner App com.intsig.camscanner Rakuten Viber Messenger com.viber.voip Candy Crush Saga 553834731

LegitShady• 1 year ago

most of the modern internet just seems to be the greatest inescapable surveillance system in all of human history.

bvrlt• 1 year ago

How is the MAID <> IDFA link constructed?

timsh7• 1 year ago

MAID = IDFA on ios + GAID on Android [https://www.start.io/glossary/mobile-ad-id-maid/]

fmkamchatka• 1 year ago

I think he meant MAID <> PII

atum47• 1 year ago

Reddit app has no permissions on my phone, but the feed suggests communities based on my location never the less. I've been traveling for the last two months, every city I've been has been suggested

scarface_746• 1 year ago

It’s just an IP look up. I travel a lot and you can tell where certain podcast episodes were downloaded based on dynamic ad insertion

nedt3• 1 year ago

Just check https://ipinfo.io/ to see how close your IP points to your location. For most targeted content the city is good enough. And honestly if I'm one of 1 million people it's ok.

aucisson_masque2• 1 year ago

I paid for pcapdroid, it's a network monitoring app that use the vpn protocol on Android to monitor every packet sent, register which app made the request, to whom, dates and so on.

In it's paid feature, you can select app to block internet connection or you can select country, ip and host.

After browsing my internet logs, it shocked me to see some app I had absolutely no idea were spying so much.

Xiaomi home ? Yeah I knew Xiaomi app would be spyware. But Spotify for instance, how could I guess it sends every few hours data to remote server including Facebook ones.

Until I find replacement for Spotify, but most music streaming app do spy on its user (and I don't mean just learning what music you like), I can still block all the graph.facebook.com tracking.eu.miui.com Google ads.gdoubleclick.net and so on.

It's open source but firewall is paid feature, i highly recommend it if you're on Android.

https://f-droid.org/fr/packages/com.emanuelef.remote_capture...

There is even the possibility to decrypt packet and analyze them although it require root, i did it on another phone and yeah it's similar to what the author found. Every single bit of data, ip adress, since how long the phone is on, the wifi connections, when did I unlock the phone and so on.

Every data taken individually is not important to me but this stream of little data constantly going God knows where is creepy as fuck.

adeon2• 1 year ago

If you have the equipment (e.g. a spare Linux computer and WiFi router) and know-how, you can set up something like mitmproxy (looks very similar feature set to the Android App, but likely requires more effort to set up) to your home network. That's what I did some weeks ago, and then basically the same exercise you did (just my whole network instead of just phone), looking what's going on. And yeah...it's not good.

Even if I trust some companies to be trustworthy, I can't possibly vet a gazillion entities getting telemetry requests, and not all of them can have their shit together, security, privacy or ethics-wise.

It made me ditch some Microsoft software, but overall escaping spying feels like a lost battle, unless you go do spartan Richard Stallman-like computing (IIRC he had pretty hardcore stance over the software he'll use).

aucisson_masque2• 1 year ago

Well I believe it's Feasible.

Anyway like most things it's a journey, not an on off switch. First you get aware then you make change and the situation gets better, it doesn't have to be perfect to be better.

On my Android phone, I had to make clear cut on which app I could keep after seeing the logs. The apps from Google, microsoft, amazon they are all gone. Even the play services and the play store replaced with aurora.

It cuts at least 2/3 of the network requests.

Then you have the case of individual apps that use Facebook SDK or other advertiser, there are often alternatives in the open source community and when it's not the case there are always less privacy invasive alternative on the store.

For instance, my default Samsung weather app was sending lots and lots of data. The alternative on the froid were not in my taste.

I eventually found out about weawow, it's not open source but it doesn't require any weird permission, no ads, it's not constantly sending data in the background and my logs says it only connect to weather.weawow.com.

I mean it's fine.

After spending weeks with the firewall, i was able to identify the spying app and replace most of them. My network log now is pretty empty when I'm not using the phone.

itissid2• 1 year ago

I think one thing people are discussing a lot here about Privacy around contacts and sharing. Limiting access to contacts , completely or partially, is the wrong way to design such systems. There are two problems with this approach:

1. Having permission to contacts is NOT a capability. Running a function on it that is by design not leak PII is infinitely more valuable and a capability.

2. Asking users to grant permission is broken by design: You are giving a very bad multiple choice to the user: `(a)Creepy? (b). LessCreepy (c). Don't Use App`

Instead if we only granted operation rights and hid the actual information instead it would be so much better. We need a separation of data from the function to empower apps to give better choices to users.

mickgardner• 1 year ago

I find it fascinating reading hacker news, full of IT folk who simultaneously build software that enables and profits from the advertising and personal information selling & tracking industry - are also the same people who complain the loudest about it. Unbelievable.

wkat424210• 1 year ago

Probably because people like us have more visibility on the huge scope and consequences of this kind of privacy invasion. Most people don't actually see this with their own eyes. They probably know it's happening in the back of their heads but it's not 'real' to them. It's very real when you know you could technically run a report of all your users that also have grindr installed.

I'm sure most of us would prefer not to work somewhere that does it but we need to eat too.. And we have no input in this.

For example recently I was given a presentation on a new IoT product at work. Immediately I asked why we're not supporting open standards stuff like matter as a protocol. And I was told that'll never fly with marketing because they want to have all the customers to have eyes on their app for their 'metrics' and upselling. I told them fine but I'm definitely not using this crap myself. But it was shrugged off. We are too few for them to care about. And it makes us very unpopular in the company too. So it's a risky thing to do that doesn't help anyway. The "don't fight them but join them and change from within" idea is a fallacy.

Capricorn2481• 1 year ago

That seems like trying to tie two separate groups together. Most people are not working on software remotely adjacent to this.

conductr4• 1 year ago

There’s no code of conduct or rule book that anyone should follow so ethics is determined at the individual level. That quickly turns to, either I build it for them or the next guy will. Resistance is futile type thing.

Most other types of engineering have published rules and standards and industry credentialing including ethics tied into it and loss of credentials for an ethics violation would be career ending in many cases.

pas4• 1 year ago

Can you give a few examples where that helped?

(I can only think of straw-man examples. Does the private prison industry have problems getting architects, civil engineers, electrical engineers? Does the pharma industry have problems getting chemical engineers for manufacturing addictive painkillers?)

nedt3• 1 year ago

We might not be the same. Every time someone asks for tracking anything I complain and question a lot. People hate me, but if there is no real use case for storing all information we can get I will veto as much as I can.

The IT folks working in the advertising industry are much more the "who cares, everyone has all our data already anyway".

boesboes• 1 year ago

Yes, because everyone on Hackernews is identical and working on the exact same stuff. It's not like it's a few companies enabling this and each marketing department going like oooooh i want that.

fkyoureadthedoc• 1 year ago

Brother, I work on internal software at a non-tech company and have never generated a single revenue.

stackedinserter• 1 year ago

These are not the same people, obviously.

genevra• 1 year ago

So you think individuals have control over how the industry works? The insight it gives devs is why some are so outspoken about it. This is a good thing.

preciousoo• 1 year ago

What a comment! Do you use Twitter a lot, by any chance?

throwaway_2898• 1 year ago

Posting here from an anonymized account about Meta. No one probably recalls that meta stopped most of their background location services(Remember Nearby Friends) on the main application ~2021-2022[1]. It was just not even worth a repeat NYT story with this much money on infra to collect locations.

But, this is basically after they figured how to do "good enough" location targetting using IP and a bunch of this info this guy talked about. You don't actually need a lat, long, just the 1 mile radius/city area is good enough to run ads and they have ALL of that.

This was why meta's revenue dropped so much after apple's move, they could not fall back to collecting precise location. This is the last game in town. You shut this down, meta's precise targetting will suffer gravely, ads will become flakey.

One last thing. You may ask, who are the businesses that need precise lat longs? are like this one[2]. These businesses are like whack-a-mole. They saturate the app market steal data get money and shit down when someone yells and in a few months and comeback again, rebranded and come back as another app. They exist not just to collect data but to act as an arbiter on who get eyeballs on IRL activities to influence behavior at the (Top of the funnel) TOFu. In the Worst. Possible. Way.

[1] https://techcrunch.co/2022/05/09/facebook-to-shutter-its-nea... [2] https://www.joinpogo.com/

itissid2• 1 year ago

does incogni work to erase your data and prevent these SSP/DSPs from never collecting your data?

jetbalsa• 1 year ago

I was just screwing around today with data like this. I was making it to have as a exhibit at a up coming event at my university

https://bsky.app/profile/balsa.info/post/3lh7z776lbk2w

You connect to a special WiFi SSID and compares your traffic to known tracking/ad domains (Pi-Hole Lists mostly) and the "food" is the packets being sent to those servers.

its crude and has some high false positive rates, but it does have a chilling effect for me when exploring what data is going where

sjtgraham• 1 year ago

There's no "personal information" here, but honestly this amount of data shared with an arbitrary list of 3rd parties is scary. Why do they need to know my screen brightness, memory amount, current volume and if I'm wearing headphones?
I know the "right" answer - to help companies target their audience better! For example, if you're promoting a mobile app that is 1 GB of size, and the user only has 500 MB of space left - don't show him the ad, right?

Author jumps to the incorrect conclusion here. The answer is fingerprinting.

timsh7• 1 year ago

The “right” answer is not the one I end up with but rather the version sold by the vendor. this is what Apple and Google would say.

j16sdiz• 1 year ago

I think they are pretty clear if you read the documentation. Accessing to the exact value of these always need some privacy-related privilege on ios and android.

Without those privilege, all you can get is an approximate.

natdempk• 1 year ago

Yeah my mind also immediately jumped to fingerprinting. Somewhat required for anti-fraud to some extent, but also obviously used for more than that.

debugnik• 1 year ago

The mention of a "right" answer, quotes and all, makes it clear they understand this argument is a farce, doesn't it?

adeon2• 1 year ago

Starting earlier this year I've set up a mitmproxy a lot on my entire home network, and often have it on for all traffic at times. I put up an old NAS and I'm abusing it as a mitmproxy tool for my home.

There would be so much to write about what I've seen. I've thought of making a blog post. I use mitmproxy to check on sketchy apps and to learn in general.

The information sent out is fascinating. I knew extensive telemetry is pretty norm these days, but it's another thing to see it with your own eyes. My exercise has also made the typical "yes, we collect data/telemetry, but it's deanonymized/secured/etc. and deleted after X days so no worries" sound very hollow; even if a company goes in good faith by their own rules, how am I supposed to trust the other 1000 companies who also do data collection. If someone hacked my mitmproxy itself and downloaded all the payloads it collected, they would probably know me better than I do.

Random examples on top of my head from mitmproxy (when I say "chatty" I mean they talk a lot to server somewhere):

I had GitHub CoPilot neovim plugin. I didn't realize how chatty it was until I did this (although I wasn't surprised either, obviously completions are sent out to a server, but it also has your usual telemetry+AB test experiment stuff). I had wanted to ditch that service for a long time so I finally did it after seeing with a local setup since open stuff has mostly caught up. Also it's not actually open source I think? I had no idea (I thought it would just be a simple wrapper to call into some APIs, but: no PRs, no issues, code has blobs of .wasm and .node: https://github.com/github/copilot.vim)

Firefox telemetry, if it's turned on, is a bit concerningly detailed to me. I think I might be completely identifiable on some of the payloads if someone decided to really take a go at analyzing the payloads I send. Also I find it funny that one of the JSON fields says "telemetry is off". Telemetry is actually on on the menu (I leave it on purpose to see stuff like this); just in the JSON for some reason it says off. I'm not sure if that telemetry is meant to be non-identifiable though in the first place.

Unity-made software (also mentioned in the article) send out a Unity piece at start-up that looks similar to the article, although I didn't take a deeper look myself.

Author mentioned the battery: I also noticed that a lot of mobile apps are interested in the battery level. I didn't connect the pieces why but the article mentions Uber 4% battery surcharge, and now it makes a bit more sense.

One app that has at least once been on HN at high scores starts sending out analytics before you've consented to any terms and conditions. One of the fields is your computer hostname (one of my computers has my real name in my hostname...it does not anymore). Usually web pages have "by downloading you accept terms and conditions" but this one only presented that text after you launch app before you get to the main portion. I never clicked it (still haven't), but I allowed the app mellow on background to snoop on its behavior.

Video games: The ones I've tried seen mostly don't do anything too interesting. But I haven't tried any crappy mobile games for example. One unity game on the laptop, Bloons TD 6 sends out analytics at every menu click and a finished game sends a summary and is the "chattiest" game so far, although seems limited to what the game actually needs to do (it has an.online aspect). The payloads had more detailed info on my game stats though, they should add those to the game UI ;)

Apple updates don't work through mitmproxy (won't trust the certificates). Neither do many mobile apps (none of the banking ones did, now I know what a mitm attack would look like to my bank app).

Some requests have a boatload of HTTP headers. I've thought of writing a mitmproxy module to make a top 10 list. I think some Google services might be at the top that I've seen. (I think Google also has developed new HTTP tech, is it so that they can more efficiently set even more cookies? ;)

I think anything Microsoft-tied may be chattiest programs overall on my laptop. But I haven't done stats or anything like that.

Aside from mitmproxy, I'm learning security/cryptography (managed to find real world vulnerabilities although frankly very boring ones so far...), Ghidra, started learning some low-level seccomp() stuff, qemu user emulation, things in that nature to get some skills in this space. Still need to learn: legal side of things (ToSes like to say 'no reverse engineering'), how to not get into trouble if you reverse engineer something someone didn't like. I've not dared to report some things, and to not poke some APIs or even mention them because I don't know enough yet how to cover my ass.

Modern computing privacy and security is a mess.

I've worked a good part of my career at a DSP company (it would be in the box that says "Criteo" on it on the author's article). So I have some idea what companies in that space have as data.

nipperkinfeet• 1 year ago

I am using AdGuard DNS and its absolutely sickening how many ads and trackers it is blocking on a daily basis. Just on my smartphone alone.

kjellsbells• 1 year ago

I don't understand how this isn't considered an incredible national security issue, e.g., what stops an actor buying data for high value targets known to use certain apps, like the President or Prime Minister of a country?

rsync• 1 year ago

How much money is tied back to, or generated from, wifi AP SSID databases for geolocation ?

Because wow that would be simple to spoof and chaff and spam.

It's dinnertime here but if I had a few minutes I could make (my own house) appear indistinguishable from (Chase Center) from the perspective of SSID landscape.

It would cost nothing and is trivially easy. Even if they pair MAC addresses that's not a big hurdle. I'll bet relative signal strengths are not measured.

It might be a good flushing action[1].

[1] https://kozubik.com/items/FlushingAction/

vv_• 1 year ago

Google's Geolocation Services used to charge 4$ for 1000 requests to their Cellular/Wi-Fi Geolocationing Service. Essentially you send a list of Wi-Fi MAC addresses and their associated RSSI values and get back a latitude and longitude with an accuracy metric. It was surprisingly good, when GPS wasn't available (sub 50 meters accuracy).

vanillax• 1 year ago

This is wild.

wkat424210• 1 year ago

From TFA:

This is the worst thing about these data trades that happen constantly around the world - each small part of it is (or seems) legit. It's the bigger picture that makes them look ugly.

No it doesn't seem legit to me at all. Any of it.

bigs• 1 year ago

This write up is fantastic

ggm• 1 year ago

The thing I found I grokked, and think is important from this article is that private browsing doesn't end this information flow. It only marks the JSON data blob as "asked not to be identified or collated" and its substantively an honour system. There are penalties (lawsuit against google for misleading people on the fact data was still collected) but the walls to breach here are low, given that non-PII can be crossmatched, to confirm "who you are" in some sense.

There is no such thing as "private" browsing inside the factory installed browser, with factory installed DNS, and any kind of location data, or other cross-collating information along with your IP. The loss of privacy may be contextual and somewhat statistical, but it would be wrong to assume you weren't identified.

What it does do, is let you see how bidding mechanisms in services like flights and hotels will change bid when the same location as you comes to request service and doesn't have the prior search cookie state. Thats useful I guess.

"find things at a different pricepoint" cookie monster mode?

ErigmolCt7• 1 year ago

"Private browsing" is just a polite request for companies to pretend they didn’t see you before

dangus• 1 year ago

“Private browsing” is just private mostly in the sense of your local device, as in, your browsing history and cookies aren’t saved to disk. That still has some use as cookies are more direct tracking than fingerprinting (e.g., keeping you logged in, or a Google analytics script seeing that you’re a logged in Google user with a real identity provided to Google).

“Ask app not to track” turns off Apple’s own device identifier, but doesn’t stop other types of identifiers from existing, as the article described by the way it showed how ad networks make their own device identifiers collected by various apps.

Uptrenda• 1 year ago

What do you think a design would look like for the web and internet where users actually have privacy on it?

sedatk2• 1 year ago

It's a bit ironic that Privacy Badger extension finds 7 trackers on the article's page.

dlikren• 1 year ago

It looks like these all come from the Reddit embed in the middle of the article. Default uBlock Origin settings blocks 13 urls (and more, due to Reddit's frequent pings), but disable 3rd-party frames brings it down to 1 url (since the original embed was blocked).

timsh7• 1 year ago

oops, here comes the price of a nice-looking Reddit embed. next time I’ll stick to a screenshot :) thanks!

sedatk2• 1 year ago

Great article regardless, thank you :)

Khaine• 1 year ago

This is why I am so against letting Web Browsers have access to so much device information. Every time, a web dev says they should be able to push notifications, or get battery information, or whatever, this is why they should be ignored.

udev4096• 1 year ago

Total bs. Do not give location permissions to untrusted apps. If the app insists on it, use mock GPS feature on android which will spoof your location. Can we all please stop exaggerating the slopiness of normies with their pretentious acts of being shocked after not being cautious about their privacy? Privacy is not by default, you have to put some effort into it

saagarjha4• 1 year ago

Maybe privacy should be by default.

monksy• 1 year ago

The people who reported about the Gravy analytics leak is 404media. They're an independent techincal media group that has been reporting on stories I haven't seen elsewhere. They're pretty awesome. I've personally paid-subscribed. (I'm not affilated with them, nor am I receiving comp to say this)

nromiun• 1 year ago

How many people only turn on GPS for maps? Aside from that all tracking methods are pretty inaccurate anyway.

nomilk• 1 year ago

Advertising Tracking ID was actually set to 000000-0000... because I "Asked app not to track".
I checked this by manually disabling and enabling tracking option for the Stack app and comparing requests in both cases.
And that's the only difference between allowing and disallowing tracking

This is revealing! I'd wondered about Apple's curious wording "Ask App not to track" leaves suspicious wriggle room - apps may not track by an id, but could easily 'fingerprint' users (given how much other data is sent), so even without a unique ID, enough data would be provided for them to know who you are 99% of the time.

Amended Dead Privacy Theory:

The Dead Internet Theory says most activity on the internet is by bots [0]. The Dead Privacy Theory says approximately all private data is not private; but rather is accessible on whim by any data scientist, SWE, analyst, or db admin with access to the database, and third parties.

[0] https://en.wikipedia.org/wiki/Dead_Internet_theory

K0nserv• 1 year ago

Apple sets Advertising Tracking ID to 00000-0000 because it's the only technical control they have. However, apps are also supposed to respect the signal with regards to other methods of cross-site/app tracking and disable fingerprinting mechanisms.

See https://developer.apple.com/app-store/user-privacy-and-data-... for details

alexvitkov• 1 year ago

It's not the only technical control they have - every single datapoint an app can gather is ultimately provided from the OS. They could let you disable access to metrics that have proven to be useful for fingerprinting. They could also attempt block known tracking code - all games with IronSource ads will run the same tracker binary, byte for byte. There's a lot of things they could do, but don't, since in the mainstream they have a pretty good reputation when it comes to privacy.

diebeforei485• 1 year ago

They have other controls. For example, a game does not need to know your precise battery level (respect the low power mode setting), or precise screen brightness (respect the dark mode setting), or precise storage or volume (appropriate is sufficient). They really don't need to know if you're using wired or bluetooth headphones, and can request a specific entitlement if they have a valid use for that information.

99% of games do not need precise location (some exceptions are pokemon go, etc). They can request and receive an entitlement.

xyzal• 1 year ago

I would like to bring attention to this project. They aim to function in an application firewall like manner and manage to block connections by category, classified by domain name. Android only though, and the 'full' version is available only on f-droid due to some anti-adblock-like Play store policy. https://trackercontrol.org/

Jean-Papoulos• 1 year ago

By "location", the OP means country. So not exactly a GPS point to 6 decimals... This is the second time I've seen a post with this problem here.

Einenlum• 1 year ago

There's also, latitude, longitude and IP.

nedt3• 1 year ago

But that latitude and longitude might still be the middle of some city or country and not an exact location. It's not really clear how close it is.

ErigmolCt7• 1 year ago

The fact that your "do not track" preference makes almost no difference in practice? Depressing but not surprising...

pandemic_region• 1 year ago

Related: has anyone else noticed the practice of using cheap commodity 'living room' appliances to get access to your data? A while ago I bought a ceiling light for my daughters' bedroom, brand unknown to me. It had a built-in speaker controlled via bluetooth, and dozens of light patterns and colors it could emit via a ring of small leds. My daughter was extactic looking at the youtube promo vid. Turned out that to use any of these features, you needed to install their app. Fine okay installing. Then the app demanded access to contacts and camera or it refused to connect to the ceiling light. Fine okay uninstalling the app and returning that crap.

Arech• 1 year ago

[emotions redacted]

Long ago there was XPrivacy project for Android that allowed to granularly set permissions for each app & system service and ensure they won't get the real private data. It's no longer alive these days, I guess. Can someone share their experience with the alternatives for the modern latest Android?

PatronBernard• 1 year ago

Moloco ads is a DSP network

A digital signal processing network? A bit annoying to introduce an acronym without defining it. Great article otherwise.

aprilfoo• 1 year ago

It seems still possible to avoid being tracked (protections, filters, degoogle, etc), and the business is not very interested in the minority willing to trade off functionality, practicality and ease for privacy. For how long?

black_puppydog• 1 year ago

I realize this feels like a pipe dream, like a million miles away from our branch of reality in 2025, but I really think the entire online surveillance advertising industry needs to be burnt to the ground and (maybe, partially) rebuilt. Many of the problems we see nowadays are rooted in the fact that data is being collected and used to (supposedly) profitable ends.

Sure, there may be the occasional honest actor in the industry, but they're so marginal and outcompeted by dishonest and shady ones that it really doesn't matter. IMHO the right move is to simply ban any collection that's not strictly necessary. Kind of like GDPR but without the "if the user agrees" exceptions.

Reminds me of a regulation about artificial stone (?) being banned in Australia, not because it's impossible to use safely but because the regulator concluded that the entire supply chain is unwilling to and disincentivized from using the material safely, so the best move at this point was to ban it outright.

Edit: found that article

https://news.ycombinator.com/item?id=38634213

Arch-TK• 1 year ago

This is one of the many good reasons to avoid the google app store but most apps in general.

Let it be known, having an app to do something which used to be doable by a website is to me a red flag. Although I refuse to install anything other than what I genuinely trust.

Developer_Tom• 1 year ago

Imo, the real takeaway here is that ad-tech isn’t just tracking people — it’s that it's becoming a decentralised surveillance network where no single entity takes any responsibility. Even with "Ask App Not to Track," your IP, geolocation, and device fingerprint still end up being leaked! It shows that tracking isn’t a feature anymore — it’s the business model.

sharpshadow• 1 year ago

Punish Unity and Facebook even more.

welder• 1 year ago

How do I dump a list of installed app identifiers to cross reference with the list of apps selling this data? [0]

0: https://docs.google.com/spreadsheets/d/1Ukgd0gIWd9gpV6bOx2pc...

wslh• 1 year ago

Is it correct to assume that if you disable the GPS for apps the exact location is not sent or I am missing something?

gfiorav• 1 year ago

One of the big WTF moments I've had in the "web vs. device" Ad-related privacy journey was realizing that even if you create an "anonymous" account on an app in your phone, your device ID is shared and can be recognized by Ad vendors.

Example:

- You're using a known account on a Mac to search for a shelf to buy

- You're using a anonymous account to browse Reddit on an iPhone

And the shelf Ad pops up on the Reddit feed. Yep, as long as you logged in with a known account on both devices, they're now linked by device id. An all you do on those devices (regardless of the account) can be traced back to you.

I read about this in "Chaos Monkeys" but it never really hit me until this experience.

mrguyorama2• 1 year ago

This is typically just done through IP address. That's why I get ads for my girlfriend's preferred eye cream brand despite the fact that we browse using different devices and the advertiser should have access to that data point.

moominpapa• 1 year ago

I really find this fascinating - great article. As an experiment if you like, can anyone identify anything about me from this post? And if not, why not? Would love to know.

sheerun• 1 year ago

At the same time "know your location" notification is less it seems to ask (ask lawyers), also portals

buro9• 1 year ago

Use NextDNS (https://nextdns.io) on your mobile phone as a Private DNS provider, and switch as many apps as allow it to be web apps, i.e. https://m.uber.com works just fine, and use Firefox on mobile and enable `about:config` via `chrome://geckoview/content/config.xhtml` , from there switch `beacon.enabled` to false.

Far less requires an actual app than most people imagine. It's the apps that leak so much.

1vuio0pswjnm7• 1 year ago

Mobile phones suck as computers. NetGuard PCAP files are must read if using a mobile phone as a computer.

One setup that works reasonably well is

NetGuard --> Nebulo --> DNSdist on own router

On phone,

(a) set DNS in Wifi to localhost, i.e., disable service provider DNS

(b) set VPN to Block all connections without VPN

(d) set Nebulo to run in non-VPN mode

(e) set DNS configuration in Nebulo to DNSdist on router

On router, point DNSdist at nsd or tinydns serving custom root zone containing all needed DNS data. Apps like NetGuard, Nebulo, PCAPdroid, etc. allow one to easily export the DNS data needed for the zone file.

There is at least one leak in this setup. Nebulo's "Internal DNS server" can only be set to Cloudflare, Google or Quad9. In theory this should only be used to resolve the address of the DoH provider and nothing else. But not allowing the user to choose their own DNS data source and forcing the user to keep pinging (querying) Cloudflare, Google or Quad9 is poor design. Those addresses are unlikely to change anyway.

Using a browser in place of other apps seems like good strategy but the browser "app" is far, far more complicated than many open source "apps" and much more difficult to control.

Firefox is not only filled with telemetry, almost no one compiles it themselves, it has more settings than any normal user can keep track of and it is constantly changing. Layer upon layer of unneeded complexity.

oldherl3• 1 year ago

I thought this was common knowledge among (at least) IT industry workers. It's been like this for a long time.

afiodorov• 1 year ago

I wonder if Apple will extend their iCloud+ private relay service to apps as a result of this.

megous5• 1 year ago

With articles like these, I'm glad for my dumbphone. At least that sends data only to my mobile operator, hopefully.

grues-dinner• 1 year ago

When someone wants to install an app rather then go to a website that could do the same thing, they are advertising that they are up to something nefarious.

TrapLord_Rhodo• 1 year ago

how is this legal? This is apples problem and they need to be sued into oblivion. If i have location tracking turned off on my phone why is my phone still sending location data?

oleyphoenix• 1 year ago

"I would highly recommend Tomcyberghost@gmail.com I felt a strong connection with him and appreciate his knowledge, expertise and manner in which he worked with my former partner and I. He handled the challenging dynamics of our relationship, and through our work I was able to leave a relationship that was hurting and hindering me. I came to that conclusion not through any direct encouragement, but through doing the work."

Everyone knows your location: tracking myself down through in-app ads

Related Stories