As the Wired blog Game | Life summarizes, the Chairman of Sony’s board of directors blames Anonymous for the hack, pointing to a calling card:
[He] revealed that the hacker left a smug digital calling card on the Sony Online Entertainment servers, which were hacked days after PlayStation Network. The file was called “Anonymous,” and simply read “We Are Legion.”
Anonymous says the calling card may have been planted:
The group is ballsy, but not stupid, it claims. A press release from the group says, “No one who is actually associated with our movement would do something that would prompt a massive law enforcement response.” On the other hand, Anonymous writes, “a group of standard online thieves would have every reason to frame [us] in order to put law enforcement off the track.”
Marvin Ammori 