Hector Xavier Monsegur known as "Sabu" in hacking circles became a Federal Bureau of Investigation (FBI) snitch shortly after he was arrested at 10:15 p.m. on June 7 last year. Helping FBI agents nab an elusive collective of alleged cyber criminals.
Assistant U.S. Attorney James Pastore said "Since literally the day he was arrested, the defendant has been cooperating with the government proactively."
The investigation led to criminal charges that were revealed Tuesday against a group of men allegedly behind Lulz Security, or LulzSec. The Lulz group, formed last May, claimed responsibility for a series of brazen online attacks including hacking computer servers of television network PBS, stealing personal information from about 100,000 customers of hacked Sony Pictures, U.S. Senate and InfraGard, an affiliate of the Atlanta chapter of the FBI these attacks were all cited in Tuesday's charging documents. Charges against a total of six men were announced on Tuesday, after which Mr. Monsegur's identity was revealed. Among those publicly charged this week was Jeremy Hammond, known as "Anarchaos," who was arrested in Chicago on Monday is suspected of hacking into the computers of Strategic Forecasting Inc, or "Stratfor," a global intelligence firm, in December 2011. Federal prosecutors also brought U.S. charges against Donncha O'Cearrbhail, 19, and Darren Martyn, 25, of Ireland also Jake Davis, 19, and Ryan Ackroyd, 23, of Britain.
Monsegur (“Sabu”) pled guilty to 12 criminal charges in August of 2011. He faces up to 124 years in prison. Federal prosecutors said Monsegur confessed in court after signing a cooperation agreement with the government. Details of the deal and any reduction in sentence that he hopes to receive will remain unknown until the court makes the information public.
The case is U.S. v. Hector Monsegur, U.S. District Court, Southern District of New York, no. 11-666.
Anonymous and its offshoots such as LulzSec and AntiSec were initially focused on fighting attempts at Internet regulation and blocking free illegal downloads. Anonymous and LulzSec in particular became notorious in late 2010 when they launched the "first cyber war" in retaliation for attempts to shut down the Wikileaks website. Attacking website of MasterCard.com, who under apparent pressure from the U.S. government following the release of diplomatic cables tried to block payments to Wikileaks.
According to court documents at the time of his arrest in June, Monsegur was unmarried and collecting a $400 unemployment check every month. The document, which detailed his bail conditions and made publicly available on Thursday, showed that Monsegur was paid $6,000 a month at his last job, which he said he held until April 2010. Monsegur also stated he had parental custody over his two nieces, aged 4 and 5.