the coin was not hacked a doublespend happend because of a weakness in ETH code base
which only affect exchanges that didnt add increased deposit/withdraw confirmations

a higher amount of required confirmations would have made all doublespends impossible

if u wana blame someone blame ETH devs

KR devs are fixing that weakness temporary with a checkpointing system longterm i hope the develp the first ETH codebase POS system as a industry first

that exchanges didnt have long enough confirmation waiting times was the other problem

again there was no hack but exploit

the exploit did hit exchanges and not peoples

and i think thats the topic of the negotiations now
how to reduce the loss of exchanges who basically allowed deposit
and sell of a incoming KR transactions that did in fact never happend legit