"He didn’t go easy,” an unnamed official told Fox. "It was because of his kids. He didn’t want to go away to prison and leave them. That’s how we got him."
For eight months Sabu worked either from FBI offices or from a laptop provided by the FBI that gave investigators a real-time view of what Sabu was doing.
FBI agents took Sabu's original laptop as evidence, probing data on it using encryption keys Sabu provided.
During the time he worked for the FBI Sabu participated in several e-mail interviews with tech media outlets, though the answers provided came either directly from FBI agents or with their approval of each before Sabu sent the answers himself.
The interviews were filled with deliberate misinformation designed to preserve Sabu's cover as a snitch and allow the FBI to manipulate other members of LulzSec into helping unwittingly in the investigation.
Sabu gathers evidence, does favors for FBI, keeps CIA from being embarrassed
Among the more humiliating favors Sabu was compelled to perform was to save the CIA from its own humiliation after members of LulzSec launched a DDOS attack that froze and threatened to crash it.
"We told Sabu to tell them to stop," an official said. "'It’s embarrassing for the CIA,' we told Sabu, 'Make them stop, now.’”
Sabu sent out the order: “You’re knocking over a bee’s nest,” he warned his associates. “Stop.”
They did. – FoxNews March 6, 2012
LulzSec attacked CIA.gov in June of last year, though only for a few hours.
Anonymous, the hacktivist group from which LulzSec split off and then rejoined, also attacked CIA.gov, fitfully though successfully, last month as retaliation for the shutdown of MegaUpload.
Sabu gathered leads on other potential targets from other LulzSec members, passing along tips on government sites that were particularly vulnerable or were the target of imminent attacks.