To quote Nelson, from T.V.'s "The Simpsons"...
HA HA!!
It's almost certainly the Chinese, not a vengeance crazed CoH player... anyone smart enough to pull this sort of thing off would understand that it wouldn't exactly be helping our cause. At least I hope so.
Getting your game hacked and your players' online privacy compromised by the People's Republic... that's the sweet smell of success for ya, NCsoft. Enjoy.