Sort of. Two “hackers” are points of interest because they figured out how to jailbreak the PS3. They made the code public. The people that obtained it and used it to steel crap and hack games are to blame. Anon (as people understand it) didn’t do anything but shut the network down the first time. Everything else is Sony trying to fix their crap. Anon did not attack until Sony brought allegations and charges to these two “hackers”. After that, Anon has for the most part let them burn in their own urine.
Oh and…
XBL > PSN