Basically, he found that by attempting and canceling an emergency call on the iPhone, holding the lock button and then taking a screenshot took him past the stage where he should have had to enter a password to access the phone.
The flaw is relatively easy to exploit and this lets you bypass the security code and use the full Phone app. From there you have access to the address book, and the pictures app by trying to change a contacts picture.
Apple promised to fix the iOS 6.1 iOS Exchange bug in a forthcoming software update so perhaps they'll fix this annoying glitch as well.
Steps to follow:
First part:
-Go to emergency call, push down the power button and tap cancel.
-Dial 112 and tap green and inmediately red.
-Go to lock screen.
Ok...ready for second part:
-Go to passcode screen.
-Keep pushing down the power button ...1...2...3...seconds and before showing the slider "turn off"...tap the emergency call button and ...voilá!
-Then without releasing the power button press the home button and ready...
First part:
-Go to emergency call, push down the power button and tap cancel.
-Dial 112 and tap green and inmediately red.
-Go to lock screen.
Ok...ready for second part:
-Go to passcode screen.
-Keep pushing down the power button ...1...2...3...seconds and before showing the slider "turn off"...tap the emergency call button and ...voilá!
-Then without releasing the power button press the home button and ready...
