Show HN: iOS 5 Global UUID Replacement 15 years ago
As they said, there is no completely secure way of providing device ID. I think people need to get over device ID though. Often what is important it really the user identity. There is no completely secure way of providing user identity either. Something close would be combination of DNA + Mitochondrial RNA + facial + retinal scan + at least one code known only to the user. But you could have multiple users playing an iPad game at the same time, etc., and how do you handle that? This is the wrong road to go down.