Quote:A group of expert hackers who attacked governments and corporations around the globe has been busted after its ringleader one of the world's most-wanted and most-feared computer vandals turned against his comrades and secretly became an informant for the FBI months ago.

Five people, including a Chicago man, were charged in court papers unsealed in federal court in New York, and authorities revealed on Tuesday (local time) that a sixth person, Hector Xavier Monsegur, a legendary figure known in the hacking underworld as "Sabu," has pleaded guilty in New York, where he lives.

Authorities said it marked the first significant prosecution of major internet hackers.