In an age where an attacker can rent a botnet of 1,000,000 PC, you don't want a function that can effectively run on a normal PC.
I dont think you even need a lot of money for that, the grey/black hat hacker just does it as his own project... There ought to be some really serious scrutiny of every byte every check-in. Maybe bitcoin should think about paying a bounty for the bugs out of some slush even.
Who's that bitcoin that you want to pay a bounty?