The FBI announced that it has arrested a member of LulzSec for his part in a series of computer attacks against "the computer systems of Sony Pictures Entertainment." LulzSec also hacked a number of online games including EVE-Online, and The Escapist, but the FBI only mentioned its most notorious security breach.. The announcement was made jointly by André Birotte Jr., the United States Attorney in Los Angeles; and Steven Martinez, Assistant Director in Charge of the FBI’s Los Angeles Field Office.
Cody Kretsinger, 23, of Phoenix, Arizona, was arrested this morning by FBI agents after a federal grand jury returned an sealed indictment filed in the U.S. District Court in Los Angeles on September 2. The indictment charged Kretsinger with "conspiracy" and the "unauthorized impairment of a protected computer." The federal indictment was unsealed this morning upon Kretsinger’s arrest.
The FBI alleges that, from May 27 - June 2 of this year, Kretsinger (AKA recursion) was involved in hacking the computer systems of Sony Pictures Entertainment as part of the group known as Lulz Security.
The FBI adds that the "extent of damage caused by the compromise at Sony Pictures is under investigation."
You can read the announcement here.