Hector Xavier Monsegur (born 1983[1]), known also by the online pseudonym Sabu (pronounced Sə'buː, Sæ'buː),[2] is an American computer hacker and co-founder of the hacking group LulzSec.[3] Facing a sentence of 124 years in prison,[4] Monsegur became an informant for the FBI, working with the agency for over ten months to aid them in identifying the other hackers from LulzSec and related groups.[5] LulzSec intervened in the affairs of organizations such as News Corporation, Stratfor, UK and American law enforcement bodies and Irish political party Fine Gael.[6]