Anonymous is a decentralized international activist/hacktivist movement widely known for its various cyber attacks against several governments,
government institutions, and
government agencies, corporations, and the
Church of Scientology.
Anonymous originated in 2003 on the imageboard 4chan representing the concept of many online and offline community users simultaneously existing as an anarchic, digitized global
brain.
Anonymous members, known as Anons, can be distinguished in public by the wearing of
Guy Fawkes masks in the style portrayed in the graphic novel and film
V for Vendetta.