Anonymous, the hacker group known for targeting companies that refused to process payments for WikiLeaks, has attacked an American security firm that has been assisting the FBI.
In response to HBGary Federal's proclamation that it knew who the leaders of Anonymous were, the hacker group stole thousands of private emails and took over the website with a letter explaining everything.

"You brought this upon yourself. You've tried to bit at the Anonymous hand, and now the Anonymous hand is bitch-slapping you in the face," said the letter.

The group also accuses the HBGary of wanting public attention, releasing part of an email attributed to CEO Aaron Barr.