I don't think it's likely at all. It would have been discovered by now if that were true. If you want to get away with stealing $400 million you certainly don't

I don't think it's likely at all. It would have been discovered by now if that were true. If you want to get away with stealing $400 million you certainly don't do something that invites the maximum amount of scrutiny, as they did in closing Mt. Gox in such a haphazard, clearly minute-to-minute manner. If their aim was to steal $400 mil and get away with it they would have shut down the Mt. Gox operation in a much more graceful, deliberate, and mysterious way. Plus Karpeles does not strike me as a criminal mastermind. Maybe that's why he's a mastermind?