I just came across this thread...
Bitfinex Hacker of 120,000 Bitcoin Sentenced to 5 Years in PrisonThe hack happened back in 2016.. and even though the stolen Bitcoins have been recovered, they’re still in the government’s possession. Just recently, the hackers were sentenced, but there’s still no clear timetable for when the funds will be returned to the exchange.
If we relate this to the casino context, a similar process might apply. It could take 5 to 10 years before the funds are recovered if the hacker will be traced, so a casino must have a solid buffer in place. That way, in case a hack happens, they can continue operations with little to no disruption. So Metawin really have manage that risk effectively.
I rule out that the incident was an inside job or a fabricated story. This incident is an indication of the weakness of the security system, but they are lucky that the amount they lost is not large enough to affect the system or the reserve fund.