Watch out! A major new security hole in the iPhone software has just been discovered… a bug that allows anyone who picks up your phone to easily unlock it and access all of your phone data under iOS 4.1.
In case you want to try it yourself, here’s how you gain access to a locked iPhone through the security hole. When your iPhone 4 is locked with a passcode, tap the emergency call button, then enter three hash keys. Now tap the call button then immediately hit the lock button.
Do the above correctly and you’ll be rewarded by being dumped into the iPhone’s Phone app. From there, you can access the user’s favorites, contacts, dial pad,. recent calls, voice mails and even send SMS and email messages through the Address book.
It’s a pretty huge bug, and it seems to work on all iPhones running iOS 4.1. This is the sort of thing Apple will patch pretty quickly, but in the meantime, show extra dilligence and care in not leaving your locked iPhone lying around.