Maybe they are also conspiring with hackers. But this is just a wild thought. If hackers can break through the system, then it is about time that exchanges strengthen their security. Maybe upgrade personnel to further back up and also analyse lapses on the system.
Cooperating with hackers is really one thing people are always skeptical about exchanges when exchanges report unexpected attacks on their systems, but we may not be able to determine the truthfulness of this issue, it is too secret and few people can understand it. But hackers are becoming smarter, that's something we can't deny when technology sector is too developed and easy to penetrate, the exchanges are better, they still can't resist too many smart people but the intelligence of hackers will help the exchanges get better, we will feel safer when our money is in the exchanges.