Law enforcement officials have arrested key members of hacker group Lulz Security, allegedly acting on information from LulzSec leader Sabu, who Fox News reports is now working for the FBI.

Fox News identifies Sabu as Hector Xavier Monsegur, a 28-year-old father of two who allegedly ran the group from a housing project on New York's Lower East Side. They say Monsegur was secretly arrested last June, and agreed to become a cooperating witness.

He pleaded guilty to 12 hacking-related charges on August 15th of last year, and his confession is due to be unsealed in court today, along with the charges against his LulzSec compatriots.

The members of LulzSec expected to be arrested or charged today include London residents Ryan Ackroyd (who is reportedly LulzSec's second-in-command, Kayla) and Jake Davis (previously-arrested LulzSec spokesman Topiary), as well as two alleged hackers from Ireland, Darren Martyn, aka Pwnsauce, and Donncha O'Cearrbhail, aka Palladium.

An alleged member of Anonymous, Jeremy "Anarchaos" Hammond, was also arrested in Chicago in connection with last December's hack of security contractor Stratfor. The data stolen in that hack was recently released by WikiLeaks as "The Global Intelligence Files."

[ap / foxnews]