Brazilian man shows how easy to hack into password-protected iPhone. Hackers can access contacts, voicemail, call history, voice control and voice control. Apple is already aware of the flaw and has the fix ready, but no luck with iOS 4.2 Beta 3. If you’re still trying to get your iPhone back to normal, it’s simple to press and hold the lock button as if you were powering your phone down and then cancel the action. We’ve replicated this trick successfully on several iPhones running iOS 4.”]
Source: https://gizmodo.com/ios-4-1-security-flaw-puts-your-iphones-information-at-5673131