Spybot may refer to any of the following:
1. A spybot a worm, first encountered on April 16, 2003. It spread between networked computers by means of P2P software, notably KaZaA. The worm linked the infected computer to an IRC network, where malicious users were able to remotely control it.
2. When referring to a program Spybot is another name of Spybot Search and Destroy, a spyware detection and removal utility used with Microsoft Windows computers.