I'm a little late here, I didn't see Blackhat in theatres.
Why did he only have about 50 million dollars in the bank at the end?
He took 78 million dollars from that bad guy!
They should have explained that, unless I missed something.
I assume he somehow donated 28 million dollars to a relief fund (whitehat style), or he spent it on 365 new Corvettes so he could drive one for every day of the year.
Or he sent it to his girlfriend's remaining family.