Comment by celticninja

I think the article is clear that the attribution to NK was done by independent 3rd party blockchain researchers and not from ByBit.

The article is also pretty clear about the method that was used to compromise ByBit and how it has evolved from previous hacks on cryptocurrency exchanges.

Sometimes it really is a nation state actor, and whilst it may be a stretch to blame a threat actor of this level if your user data was stolen, this is 1.5bn in fungible cryptocurrency, just the sort of thing a pariah state requires and can launder with minimal risk of arrest or any judicial action really.