[akerl_]

It doesn't matter if you're storing bitcoins or roflcoins or pictures of kittens: in most places, maliciously accessing somebody else's computer system and stealing data is a crime.

The government investigates stolen "ones and zeros" all the time. The FDIC provides protection for users, but the lack of FDIC doesn't mean that no laws apply.

[panhandlr]

What about the laws the operators of the exchange broke by running un-audited code to handle financial transactions?

[akerl_]

Assuming such laws apply to them, and assuming they broke them, "so?". Their guilt or innocence does not have any connection with any investigation of somebody hacking into their systems.