Occupation: Shadowy, loose-knit cadre of hackers
Anonymous isn't a person. It's not even a group of people in any well-defined sense. But if you tick off the thin-skinned, ad hoc network of hackers who collaborate under the Anonymous moniker, get ready for trouble. Members have reportedly attacked sites ranging from the Vatican's to those of major companies such as PayPal and Sony; they apparently released 75,000 credit-card numbers belonging to customers of research firm Stratfor. Arrests of dozens of suspected participants in multiple countries haven't shut down the leaderless organization.