During most hack, cryptocurrencies were stolen while few stole users login details.
If the users' login details were used to stole coins then it's not the platform that has been hacked it's just the user account (and his/her coins) and that makes a big difference. Hackers don't use users' accounts to then hack the platform's system.
Good point. Because, having hacked an exchange, of what use will it be going through tons of individual wallets instead of just transferring the available individual coin balance on the exchange. It would be less work and less time consuming but then, these hackers are really a pain in the a** .
There are many exchanges that has been hacked in the past
It happens every six month period, we're used to it...
Having the periodicity in mind, two questions comes to my mind.
1. Isn't this some insider job?
2. Could it really be that these hackers are distinct individuals or within the corporation if any that is supposed to ensure the security of exchanges, should it be that exchanges are registered?
3. Would you still conduct business or stock some amount of coin on an exchange with a previously hacked history despite the modifications done on the exchange?