If you don't store many coins on your exchange account also decentralized exchanges should be ok.
You have always to note that exchanges can be hacked and if you have all your coins there it's clear that it won't be a wise decision.
I think that this should have happened, because today we understand that a lot of exchanges were hacked, but Binance was not hacked earlier, so they did it now, this once again confirms the idea that there is nothing 100% guaranteed.
Binance was hacked in the past but they did refund all damaged accounts (funds were safu)