Authorities say Sabu, the former leader of prominent hacker group LulzSec, is a 28-year-old man from New York City named Hector Xavier Monsegur. Sabu had been secretly arrested by the FBI last year and has since allegedly acted as an informant for the authorities. The disclosure Tuesday by U.S. authorities corresponds with much of the information released about him by rival hackers in the past. The whole law enforcement operation resulted in the arrest of five more alleged hackers.”]