(Reuters) - One late-night visit by the FBI was all it took for the notorious hacker known as "Sabu" to switch sides and become a valued snitch.
Hector Xavier Monsegur cooperated immediately in June, helping investigators close a net around five other leaders of the international hacking group Anonymous, according to court documents made public on Thursday.
Monsegur sometimes stayed up all night, talking with co-conspirators to help the government build its case, Assistant U.S. Attorney James Pastore told a Manhattan federal court judge at a secret hearing days before Monsegur's August 15 guilty plea, the court papers showed.
Monsegur, 28, was arrested at his small apartment in a Manhattan housing complex on June 7, U.S. authorities said on Tuesday in announcing charges against him and five others. The precise time, 10:15 p.m., was revealed in Thursday's court papers.