Two mechanical arms control the ball’s spin and tilt, and the keylogger read out the position of those arms. Thus, each character on the Selectric’s type element ball has its own signature.

Keyloggers can spy on your keystrokes, but attacks are rare and specific, as they require greater effort from attackers.

Two mechanical arms control the ball’s spin and tilt, and the keylogger read out the position of those arms. Thus, each character on the Selectric’s type element ball has its own signature.

Hardware keyloggersHardware keyloggers are physical devices that intercept keyboard signals as they travel to a computer. These loggers are often small and can be hidden inside a computer ...

He had distributed hardware keyloggers throughout University computers and used the credential he gleaned from them in order to log-in to the University's core systems. According to the ...