Anonymous is an international hacking collective which undertakes well-publicised attacks against powerful institutions.
Anonymous has a very loose and decentralised command structure, with individual hackers around the world responding to a loosely self-agreed objective.
The group is driven by a critique of modern society, rooted in opposition to consumerism and the influence of money in society. In this sense Anonymous can be called a ‘hacktivist’ group, rather than a cyber criminal gang driven by profit.
Anonymous members often appear in videos, wearing the Guy Fawkes mask that was popularised in the film ‘V for Vendetta’.