[ by Melanie Gretchen ] An FBI conference call on cybercrimes was intercepted by ... cybercriminals.  U.S. and overseas agents and law-enforcement officials were on the call at the time it was breached.  The hacker group Anonymous claimed responsibility for infiltrating the call and noted this hack attack was part of a series of similar actions against law enforcement around the world. Anonymous reportedly is a loose affiliation of hackers and activists, with no formal structure or membership. The breach. The FBI said the breach wasn't made on the agency's secure e-mail or other computer systems.  Rather, the breach was caused by a law enforcement officer overseas who was invited to be on the FBI call and who forwarded the information to his private e-mail account, which was compromised by hackers.  As the information was intended was for law enforcement officers only and was illegally obtained, a criminal investigation has been opened "to identify and hold accountable those responsible," the Bureau said. For its part, Scotland Yard said that "no operational risks have been identified." One Twitter account, claiming to be associated with Anonymous, suggested that hackers have been monitoring FBI communications for some time. The call. During the 16-minute call, FBI agent in the U.S. and Scotland Yard counterparts in the U.K. discussed stopping cybercrime across borders.  In addition to its efforts to assist U.S. investigations into hackers, some of whom are also facing charges in the U.K., British officers discussed what they described as impressive investigative work to recover data from hard drives of suspects. Discussion over the phone included a U.K. teenage suspect, who uses the moniker TehWongZ, in a reported breach of Steam, a U.S.-based gaming website.  In November, it advised customers that its site had been defaced and that accounts may have been compromised.  During the phone call, they referred to TehWongZ as a "wannabe" and a "pain in the butt."  In response, the FBI agent on the call said that agents in Baltimore were investigating. Much of the call consisted of joking and conversational asides that weren't work-related. For more details, go to [WSJ, 2/4/12].