As I quote your post, you have a lot of "size" code please lessen that in the future if you're going to post again something.
Do you see this happening again in the future?
There's no way to prevent hackings if the exchanges or any crypto service has a weak security measures. As the security tightens, these hackers will always find a way to hack but I believe that the strongest security would always win through daily updates.
what does this mean for the future of crypto?
Does this bothers you? The large companies will create for sure some rules that will disallow this kind of support.