EXCLUSIVE: It was one of the hottest days of the year and evening temperatures were still sweltering when two FBI agents wearing bulletproof vests under their dark suits climbed the stairs of the Jacob Riis housing complex in New York’s Lower East Side on June 7, 2011. Drenched in sweat, they knocked on the steel door of a sixth-floor unit. It swung open to reveal a man in his late twenties wearing jeans and a white T-shirt.
“I’m Hector,” he said.
The agents were suddenly face-to-face with “Sabu,” the computer genius they had stalked for months, a quarry so elusive they hadn’t pinned down his identity and location until just weeks before. The suspected ringleader of the Anonymous offshoot group LulzSec, Hector Xavier Monsegur and his web minions had just completed a month-long reign of terror, hacking the CIA, Fox, Sony and several financial institutions, causing, according to some estimates, billions of dollars in damage around the world.