If you want a good lay-oriented breakdown of how Cosmicstrand installs a wicked God in your computer, check out Dan Goodin's excellent *Ars Technica* writeup:
Cosmicstrand dates back at least to 2016, a year after we learned about the NSA's BIOS attacks, thanks to the Snowden docs:
https://www.wired.com/2015/03/researchers-uncover-way-hack-bios-undermine-secure-operating-systems/
20/
But despite its long tenure, Cosmicstrand was only just discovered. That's because of the fundamental flaw inherent in designing a computer that its owners can't fully inspect or alter: if you design a component that is supposed to be immune from owner override, then anyone who compromises that component *can't be detected or countered by the computer's owner*.
21/