What is Hardware keystroke logger?
Hardware keystroke loggers are an alternative to traditional keylogger programs. Installed between the keyboard plug and the motherboard socket, these small devices are often difficult to detect as the computer has no additional software running on it. Unless the user physically examines the PS/2 keyboard connection, there will be no evidence of anything unusual. An obvious disadvantage of the use of a hardware keystroke logger is that the attacker must have physical access to the computer being examined. Also, the presence of a physical device, as opposed to a simple software keylogger, may have legal implications should the device be discovered.
