Mostly apps that take advantage of tracking users via UDID / IDFA and not showing ads. At some level, developers still need a UDID for things like APN.
Why are they even storing phone numbers in plain text. According to their Privacy Policy, the numbers are only used for finding friends; i.e. they look up your contacts from their database.
In which case, to do that they do not need the plain phone number, but only a hash derived from it. This is like storing passwords in plain-text.
10 comments
[ 2.9 ms ] story [ 49.6 ms ] threadIn which case, to do that they do not need the plain phone number, but only a hash derived from it. This is like storing passwords in plain-text.