Stands for "The Crusade for Havoc, Anarchy, and the Overthrow of Society". CHAOS is a techno-terrorist group in the Spy High series. To conceal their identities, they wear masks that look like the photographic negative of a human face. They create a computer virus in the image of a spider called Nemesis, which nearly ended society, since in 2060, the world was extremely dependent on computers and technology.