NCsoft has announced that starting tomorrow, Dec. 1, Aion will be implementing a new secondary password system to help keep accounts protected. The new system will become active after the weekly server maintenance. When logging in, players will be prompted to input a new Character PIN. This number will be needed everytime you log into the game. The password will need to be entered using the mouse, and the number pad will change everytime to prevent mouse-movement tracking.

Check out the Aion PowerWiki page for a complete breakdown of the new secondary password system.