Not that Geohot, famed PS3 hacker who settled with Sony after they went after him with all their legal might, is laughing at those affected by the PSN hacking. Blogging that he feels sorry anyone affected, he also added that he most definitely isn't behind the hacking:

"And to anyone who thinks I was involved in any way with this, I'm not crazy, and would prefer to not have the FBI knocking on my door. Running homebrew and exploring security on your devices is cool, hacking into someone elses server and stealing databases of user info is not cool. You make the hacking community look bad, even if it is aimed at douches like Sony."

While Geohot's not behind the attacks himself, he has a fair idea of who is: "the fault lies with the executives who declared a war on hackers, laughed at the idea of people penetrating the fortress that once was Sony, whined incessantly about piracy, and kept hiring more lawyers when they really needed to hire good security experts. Alienating the hacker community is not a good idea." [Geohot via Kotaku]