Here is an interesting hypothesis from Vin Armani:
In this video, software and blockchain developer Vin Armani examines the WannaCry ransomware (attack) that the corporate media acted like it was the end of the world. Ultimately it appears to be an amateurish false flag attack on bitcoin. But upon digging into the bitcoin addresses used in the attack, Vin discovers a potentially much more nefarious attack on bitcoin.
You can read the rest @
The powers that be maintain their power in large part because of their control of money. It seems reasonable that bitcoin would be something they would want to either compromise or eliminate.