Apparently Apple is not the only company who suffers from a passcode lock security vulnerability in its smartphones. Terence Eden has found a similar flaw in the Samsung Galaxy Note 2. An attacker can bypass the pattern lock, PIN, password, or face unlock and gain access to the phone's contacts for calls.
The bypass works in similar way that it did on the iPhone. By using the “Emergency Call” feature on the lock screen, and attacker can hold the home button to briefly see the home screen. If they time it just right, they will be able to call some contacts.
The flaw affects the Galaxy Note II running Android 4.1.2, and could possibly be in other Samsung devices as well because they all run the same TouchWiz interface. Mr. Eden notes that the vulnerability is small because it does not give you as much access as the iPhone vulnerability did. Samsung has not made a statement about the flaw, but I'm sure a patch is on the way.