It depends on which exchange , in as much as they are susceptible to hack and lost of funs some exchanges have gone ahead to insure their exchange and can pay back individuals when lost occurs
and what about coinsmarkets? they don't pay individuals, they disappear and run away just after their market is hacked, I see there are hundreds or even hundreds of BTC carried by hackers
Never heard of it honestly, that's why I can speculate that this exchange is not officially licensed by any authority or simply a dummy exchange.
They might said that they got hacked but who knows if it's inside job.
This kind of thing often happen to crappy exchange that was made to steal people's money too, so watch yourself.