It is a clear conspiracy by western media to gang up to blame just about everything to either Russia, China or North Korea. It's a sick collective mind that has corrupted journalism. 

Why would NK want to do this hack around the world, hitting China particularly hard, just to collect a tiny amount of money? Why would they use Bitcoin, something they probably have no understanding? Do they really have experts able to use the sophisticated code developed by the NSA?

The perpetrator of Ransomware is not yet known. But I can tell you the co-mastermind. It's the NSA. Ransomware attack not possible without the toxic code developed by NSA, designed to hack Americans en-mass. But now a blow back. 

There is not a word by the same corrupt media blaming the NSA.