I can't believe that so many exchanges turning into a scam, or get hacked, what is so hard to have the coins saved on hardware wallets and only send funds from there when a withdrawal is needed using a software?
Yes, but Bcnex exchange is not hacked by anyone, they are purely making a deliberate fraud, because until now only the withdrawal process for many exchange users is still delayed and many even rejected after one week of pending.
I understand but i mainly reffer also to MTGox and other exchanges that turn into scam after time. If we use decentralized exchanges this will change or they still can hold our coins?