Just goes to show, if your highly illegal target is roughly 100 Million, be sure to reach for like ten times that amount and try to grab an absurd 1 Billion.
Maybe they withdrew some of it in cash. I don't see why some foreign bank should be on the hook once the funds have cleared and been withdrawn by the thieves.
Here in the West, we elect our criminals, who use corrupt procurement, bribery, and other frictions to suck many trillions from our GDP. Not to worry, though: the debt payments on this kind of policy will shortly eclipse the thefts and legitimate spending.
Imagine if close to 1 Trillion $ was stolen from the Federal Reserve !
Edit - apparently its 85 Billion - not 1 Trillion - pretty embarrassing since I have a degree in maths -> shame .. ding ding .. shame.