My application is a .swf file inside a php wrapper. Since I have a paid subscription site, I want to prevent "user A" from giving his password to "user B". If user B loggeds in w/ User A's username & password, then I will simply log out User A. (In the case that User B stole the password/username of User A then User A can simply change his password...This would also allow User A to login at home if he forgets to logout of the application while at work).
What's the best way to do this?
