At least, someone will spend a wonderful Christmas, with full of gifts...
Sometimes I wonder if they are telling the truth and if they really got hacked.
In reality, they can say that there was a security breach, but in fact, nothing happened at all and the users wouldn't notice since no proof was given, nor any audit published. It's just a matter of manipulating the databases.
Great business, you open a platform and attract users, and once the vaults are full, you can go on Twitter and say you were hacked.
Why would they offer to refund users in this case? Well, by the time you pay back the users you can earn profits with their money
I'm not saying that's what this exchange has done, but I'm sure there's at least one that has already done it
To @OP
The question should not be which exchanges have been hacked but which exchanges have never been hacked. =)