It's already starting. I've heard that Nvidia developed a cutting edge computing audit system, that was developed to detect, in real time, that GPUs are being used for calculating simple hashing algorithms and snuffs out all computation. The next step is just government mandated cpu firmware, installed in all Intel and AMD CPUs that can detect when a computer tries to calculate a SHA hash, and immediately reports it to the fed. This leading edge tech is already being shared by Nvidia with the FBI. I've heard it's unhakable.