Logic Bomb

A logic bomb is a piece of code inserted into an operating system or software application that implements a malicious function after a certain amount of time, or specific conditions are met. Logic bombs are often used with viruses, worms, and Trojan horses to time them to do maximum damage before being noticed. They perform actions like corrupting or altering data, reformatting a hard drive, and deleting important files.

Also see: Bomb, Hard drive, Reformat, Security terms