Yang seems like an obvious culprit with his backgriund.
Bloomy has the cash to buy quality hackers.
Quidpro Joe wouldnt know where to start.
Amy couldnt afford it.
Pete had the most to gain.
Whoever it was they sure hate Pocahontas. Then again she was circling her way down to the toilet so it could be her trying to shift the paradigm.
Or maybe Hilly was trying to upset the applecart enough to make the party come crawling back to her.

So.... whodunit ?