I had similar thoughts. Of course its NK, the most convenient nation state boogeyman we have in 2019. They are barely on the internet, yet somehow there is a large enough community of North Korean hackers such that their government can form this fantastical "Lazarus" hacking group from their constituents? Lazarus, which is purportedly capable of subverting nuclear power station security, exfiltrating 100TB of data from Sony, et. al.? Surely that doesn't require a huge range of unique talents which are best developed in an open and free society... I am at a point where NK is largely a CIA front.