Anonymous is a decentralized international collective known for its various cyber activism campaigns. Originating from the imageboard 4chan, the group is recognized for its use of the Guy Fawkes mask as a symbol of protest against censorship and government oppression. The collective operates without a formal structure, allowing individuals to participate in various initiatives, including Operation Payback and Project Chanology. Their activities often involve hacking, website defacement, and other forms of digital protest aimed at raising awareness about social and political issues.