Re: Who is behind all this? and government spies...
Mmmm. I'm no expert in the tech involved, but consider the recent leaks of NSA hacking tools.
Next headline: "NSA tools for hacking Intel Management Engine and AMD Platform Security Processor leaked. Laptop with entire codebase gone missing".
Meanwhile, on darknet: "Shadowbrokers offering one time sale on Intel ME and AMD PSP haxxors. You buy, we sell. #shadobrokers is being back in spades."