If you are not going to mention the name of that exchange the same issue will soon be encountered by another user so I think you can help us with that. Lucky for you to recover all your funds and now it is a lesson learned.
Please skim through the prior messages from others. It has been mentioned.
To give them the benefit of doubt, I was only asking if it was an inside job. I did not say it was an inside job.
( I really like the CEO on the way he handled the previous hacked case by issuing a bounty on the hacker. So if there was an inside job, they should drag the person/group out to prevent their reputation being ruined.)