Looks like there's been a glitch in Apple's iOS 4.1 firmware, the relatively important security flaw too. The glitch allows users to hack their way through and bypass the lock screen on the iPhone in which you are required to enter a passcode, the result is that you won't need to know the passcode to reach the iPhone phone app and access some degree of private data.

Simply inputting a random number in the emergency call field, pressing call, and then promptly hitting the hardware lock button will take you to the Phone app, thereby granting you access to the call history, voicemail, and address book. In addition, you can also hold down the menu button to access voice control and play some locally-stored music while you're at it.

[via BGR]