Mario Tama / Getty Images
A prominent member of the amorphous hacker-activist collective Anonymous was reportedly turned by the FBI, leading to the arrest of five hackers in three countries. Prosecutors announced charges Tuesday against the men, spread across Britain, Ireland, and Chicago, and alleged that they have been engaged in attempts to steal information from the computer systems of U.S. companies and hack government websites. The officials alleged that the five were involved in the recent hacking of Stratfor, a Texas-based intelligence company that had documents leaked on the Internet after WikiLeaks got a hold of them. The FBI was led to the five men by an informer, Hector Xavier Monsegur, a hacker who was arrested in June and began cooperating with law enforcement.