Anonymous publishes FBI-Scotland Yard call

LONDON -- Trading jokes and swapping leads, investigators from the FBI and Scotland Yard spent the conference call strategizing about how to bring down the hacking collective known as Anonymous, responsible for a string of embarrassing attacks across the Internet.

Unfortunately for the cyber sleuths, the hackers were in on the call too -- and now so is the rest of the world.

Anonymous published the roughly 15-minute recording of the call to the Internet Friday, gloating in a Twitter message that "the FBI might be curious how we're able to continuously read their internal comms for some time now."

The humiliating coup exposed a vulnerability that might have had more serious consequences had someone else been listening in on the line.

"A law enforcement agency using unencrypted, unsecure communications is a major fumble," said Marcus Carey, who spent years securing communications for the U.S. National Security Agency before joining security-risk assessment firm Rapid7.

The leak was one of a slew of Anonymous hacks that hit websites across the United States Friday. But the hackers' success in spying on the very people charged with tracking them down was the most dramatic coup of the day, with sensitive police conversations broadcast across the world.

The FBI said the communication "was intended for law enforcement officers only and was illegally obtained," but added that no FBI systems were breached. It said that "a criminal investigation is under way to identify and hold accountable those responsible."

Anonymous published just such an email Friday, complete with the date, time and password needed to access the call.