This just keeps getting uglier. In a letter to Congress, Sony blamed the notorious vigilante group Anonymous for recent cyberattacks on Sony's network, exposing personal data of more than 100 million gamers. Anonymous was quick to deny involvement, simply stating, "Let's be clear, we are legion, but it wasn't us. You are incompetent Sony." Whether or not that's true, Sony hopes to find out in an ongoing investigation, but in the meantime, at least one more attack appears imminent.