[cynix]

I vaguely remember some apps using the MAC address of the WiFi interface as an identifier. Has this been banned yet?

[forrestthewoods]

Maybe yes maybe no, but either way that's not a good solution.

iOS 6 - use vendor identifier iOS 5 - create an ID via CFUUIDCreate() and save it iOS 4 - can be safely excluded from support

[cynix]

> Maybe yes maybe no, but either way that's not a good solution.

I'm asking this as an end user - I want to see this usage banned so that apps cannot track me using the MAC address.

[revetkn]

Vendor identifier is user-resettable. Storing UUIDs fails on reinstalls. MAC is persistent, as are other tricks like keychain storage

[derefr]

> Vendor identifier is user-resettable.

And that is a feature, not a problem to be worked around. :)