If you leave your coins in an exchange and the exchange of your account gets hacked, sorry mate your funds are lost and there is nothing you can do about it. The SAFU funds that we hear about are all digits and not real funds, because there is no prove. This is why it is useless to keep your idle funds in an exchange. It is get lost, you are on your own, because how will you see them and hold them responsible for the lost of your funds. Those exchanges are business people and are only concerned about themselves and don't give a shit about you, but your funds.