Sony is stopping short of making direct accusations, but pointed an accusatory finger at the collective group of hackers who go by ‘Anonymous’.

The company, in a letter written to the House Subcommittee on Commerce, Manufacturing and Trade, said it does not yet know who was behind the attack, but it had found a file planted on the server of Sony Online Entertainment named “Anonymous”. (SOE just yesterday announced it had discovered hackers had accessed and stolen information from 25 million accounts.)

Read more at Variety’s Technotainment blog