One of the requirements is that there be a continuing (if increasingly difficult to obtain) supply of new blockchains to be added and used, if I understood what the crypto bros have been trying to tell everybody. No new blockchains means no more opportunity for growth. With the inherent value of a blockchain being, what, zero? Yeah, there's a solid investment for people in search of a tax write-off.
Fox News and YouTube? Seriously?
If you want to be an idiot, fine. Don't act like you think the rest of us are. Keep your alternative facts and your alternative news sources to yourself. This is Slashdot. We're into real facts.
Think about it: to break into a secure system, you have to be smarter than the guy that secures that system. To secure the system, you have to be smarter than all the guys trying to break in.
To make money selling security software, you just have to be smarter than a PHB.
The code was probably manually installed. A sysadmin (or higher) probably manually redacted the logs after initial installation from USB drive. After that, it was just a matter of maintaining the exploit, updating it with tools from the modern malware tool set, custom tailored to the security of the carefully-managed victim set.
Just guessing - but zero "in the wild" instances is sort of telling . . .
An adequate bootstrap is a contradiction in terms.