Hacker group LulzSec, whose reign of online terror last summer compromised companies ranging from Sony Pictures to Bethesda Softworks, has been dismantled by federal officials, with the group’s leader apparently acting as an informant.

The U.S. Attorney’s office on Tuesday announced it had charged five people with computer hacking and other crimes. Hector Xavier Monsegur, better known as LulzSec leader “Sabu,” had pled guilty to those crimes.

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