We Are Legion: The Story of the Hacktivists

Some attack governments, large corporations... and steal personal identities. Others use their skills for political activism. They are hackers.

Anonymous is a loosely associated hacktivist group. It originated in 2003, representing the concept of many online and offline community users simultaneously existing as an anarchic, digitized global brain.

It is also generally considered to be a blanket term for members of certain Internet subcultures, a way to refer to the actions of people in an environment where their actual identities are not known.

Anonymous: The Story of the Hacktivists - Online technology documentary