Samsung aware of lock screen security issues, working on a fix
The past few weeks have seen some prominent lock screen security issues come to light on certain Android 4.1-based Samsung phones, including the Galaxy Note 2.
Most recently, blogger Terence Eden was able to completely bypass the Note 2's lock screen security by cleverly utilizing a vulnerability in the way Samsung's TouchWiz software exits out of certain emergency dialer menus. This morning Samsung has confirmed to Android Central that it's aware of the issue and working on a fix.