An attack on the PlayStation Network back in 2011, left the network inaccessible for about three weeks. It turns out that four members of the Lulz Security (LulzSec) were responsible for it amongst other online attacks.
The four members ages between 18 to 26, represented by 20 year old Jake Davis, who also ran a LulzSec Twitter account, pleaded guilty when faced with charges in the Southwark Crown Court.
The other four members including Mustafa Al-Bassam (18), Ryan Ackroyd (26), and Ryan Cleary (21) were charged with hacking the CIA and UK crime agencies. It was during these charges that the group also admitted hacking more than 70 million PSN and Sony Online accounts which forced Sony to bring it down for maintenance.
The PSN shut down cost Sony a loss of an estimated $171.1 million. The group has previously also attacked other game sites such as those related to Minecraft, League of Legends and Eve Online. LulzSec, having pleaded guilty, will be sentenced next month.
Source: CNET UK