Facebook using tagged photos for authentication

http://datamining.typepad.com/data_mining/2010/07/facebook-using-tagged-photos-for-authentication.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+DataMining+

by jgrahamc • 16 years ago

23 14 16 years ago

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GBKS4• 16 years ago

I've experienced this too when I logged into from a different computer than usual. It's very misleading from Facebook, since it's not a re-authentication, it's just a login. I'm also pretty sure they just use this as a simply way to get their photo archive tagged by forcing people to go through this procedure.

To me this is just another lame move from Facebook to get their hands on personal data for their own advantage. Considering that my benefit from Facebook is to see friends' vacation photos, some random things they do and wish them happy birthday, I don't see the need for Facebook to know much about me.

To sum it up, Facebook needs to take a chill pill.

sandipc• 16 years ago

I'm no Facebook fan, but how is Facebook getting any additional personal data from you with this move?

bartl• 16 years ago

They get you to put names on faces in pictures.

stellar678• 16 years ago

I guess it's possible that they're doing the same thing as recaptcha - for some questions they already know the answer, others they're going to use your answer as a data point.

GBKS4• 16 years ago

See my reply to another comment - the data doesn't exist. In some images I was supposed to identify random objects or blanks walls as my friends. So they do use this to train their algorithm and/or complete their database.

Goosey• 16 years ago

Considering the data is already there at the point of authentication I think this is a great and innovative idea. Infinitely better than 'What is your mother's maiden name?' type questions.

qq66• 16 years ago

The problem is that it's very vulnerable to attacks by people who know me -- they tend to have interacted with many of my friends. I wonder if Facebook deliberately chooses the photos from different clusters of people.

GBKS4• 16 years ago

I don't think the data exists. In several images, I was supposed to identify a blank wall or a random object as a friend. Pretty sure they use this to tweak their face detection algorithms.

ciniglio• 16 years ago

It would be nice if they ran a facial recognition algorithm or something on their pictures. I've been forced to guess which one of my friends got tagged as their pet or as some beach.

Facebook using tagged photos for authentication

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