Leaving cryptocurrency assets on the stock exchanges on which you constantly do not sell, you do so at your own risk. The crypto currency exchange is not your Bank, which by default is interested in the safety of your assets and maximize the operational warning you of any danger. So she won’t have to spend huge amount of their own resources, as does the Bank.
You will not be called on the crypto currency exchange and notify about suspicious activity in your account. It is logical, because the very concept of cryptocurrency suggests that if someone got into your account, it could be only you. And if not, the entire responsibility for the consequences rests solely on you.