Hotel Door Lock Vulnerability
The attack only works sometimes, but it does allow access to millions of hotel rooms worldwide that are secured by Onity brand locks. Basically, you can read the unit’s key out of the power port on the bottom of the lock, and then feed it back to the lock to authenticate an open command using the same power port.
Harvey MacDonald • August 2, 2012 1:35 PM
Or you just wait for the cleaning lady to open the room, then walk in like you own the place.