Coinex claims that the hacking was done due to the phishing site. The exchange does not tell about whether they recover the loss or not, but this is a reminder for those who store their fund in the exchange. This hacking shows that even a reputable exchange can be hacked, it is not safe for the users to store their funds in the exchange besides storing their funds in their wallet.
Have been common reason with all exchange market when trying scam will give reason their exchange are hacking and can't guarantee with user or member assets will refund, seems the only FTX never give reason about their exchange have been hack before scamming their member. Before Coinex I think MtGox ever hacked and until right now the user assets not refund yet although hacker have been under arrest and they have got back their bitcoin assets.
After FTX crashing seems not any new exchange have been hacked and sees secure for holding assets in exchange market although saving in wallet most recommended. Can't predicting with reputable exchange trusted will exist until how long depend with FTX is most trusted exchange and finally become scam without refund the user assets.