Anonymous is a group.
Anonymous is a loosely associated international network of activist and hacktivist entities . The group became known for a series of well-publicized publicity stunts and distributed denial-of-service ( DDoS ) attacks on government , religious , and corporate websites . Some actions by members of the group have been described as being anti-Zionist . Supporters have called the group `` freedom fighters '' and digital Robin Hoods while critics have described them as `` a cyber lynch-mob '' or `` cyber terrorists '' .