I have discovered another security flaw in Samsung Android phones. It is possible to completely disable the lock screen and get access to any app - even when the phone is "securely" locked with a pattern, PIN, password, or face detection. Unlike another recently released flaw, this doesn't rely quite so heavily on ultra-precise timing. Video . Of course, if you are unable to download a screen unlocker, this security vulnerability still allows you to dial any phone number and run any app ! HOWTO From the lock screen, hit the emergency call button. Dial a non-existent emergency services number - e.g. 0. Press the green dial icon. Dismiss the error message. Press the phone's back button. The app's screen will be briefly displayed. This is just about long enough to interact with the app. Using this, you can run and interact with any app / widget / settings menu. You can also use this to launch the dialler. From there, you can dial any phone...