All hell broke loose yesterday when it was discovered that a lot Android and BlackBerry phones (in the US, at least) are recording every keystroke you make. References to the same software have been discovered in Apple's iOS. It's gimped, but it's there.
Last night, prominent iOS hacker chpwn tweeted that he had found reference to the same, now notorious Carrier IQ software in iOS 3. After just a little more poking and prodding, it was confirmed that these references exist all the way up to modern day iOS 5, they're just under a different name: /usr/bin/awd_ice2. But wait, before everyone starts returning their iPhones (none of you were going to do that anyway), there's a bit of good news.
It seems that the data Carrier IQ has access to is much more limited than it is on Android. From chpwn's blog: "...it does not appear the daemon has any access or communication with the UI layer, where text entry is done." That is extremely good news if it proves to be true, because it would mean that iOS wouldn't be logging your passwords, emails, SMS messages, etc. Even more good news, it seems that you may be able to turn this off by simply disabling "Diagnostics and Usage" in iOS's Settings, which would be a relief.
At the same time, it does appear that it logs your name, phone number, carrier information, some info about the calls you are making, and your location (if Location Services are enabled). There may well be more, they just haven't found it yet. We'll update as we learn more. [chpwn via The Verge via TheNextWeb]