Documents released by a New York court have shed light on the activities of the notorious LulzSec hacking group, which carried out well-publicised attacks on PayPal as well as stealing information about X Factor constants.
The Southern District Court of New York has unsealed its indictment against Hector Xavier Monsegur, otherwise known as LulzSec kingpin Sabu, who was working as an informant to bring down other Lulzsec members.
The charge sheet includes accounts of how Monsegur played a key roll in attacks against Visa, MasterCard and PayPal, along with denial of service attacks against several governments, including Tunisia, Algeria, the Republic of Yemen and Zimbabwe.
Monsegur is also accused of accessing the computer systems of broadcaster Fox, allegedly stealing confidential information about X Factor contestants.
He is also charged with obtaining dozens of credit card details and committing bank fraud.
Elsewhere, the Federal Bureau of Investigation has released details on the activities of other LulzSec members, it says were arrested in connection with a number of attacks.
Monsegur was identified as hacker Sabu in posts made to document-sharing website Pastebin last August.
The FBI said Jeremy Hammond of Chicago, who used the online name Anarchos, was responsible for the attack on security publishing house Stratfor, which resulted in thousands of internal emails being publishing on Wikileaks.
The FBI also accused Donncha O'Cearrbhail, a 19-year old student from Birr in Ireland of being responsible for the leak of a police conference call, which discussed their progress in combatting Anonymous-related hacking groups.
A LinkedIn profile for a Donncha O'Cearrbhail from Birr, describes him as a medicinal chemistry student at Trinity College, Dublin.
It says he is currently looking for internships or summer work in the information security industry, although there is no confirmation it is the same person at present.
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