My ex-son-in-law, now deceased, worked for one of those Research Triangle Park shadow tech companies set up by a 3-letter gov agency (probably starting with "N"). As best as Debbie could determine, his primary expertise was network security. Years before we started the remote working movement, he moved his office to his home. This seemed odd to me, but now I assume that it was to limit oversight by those in the company. I know his security clearance was higher than his bosses' and he didn't like people seeing him leave his desk for other ultra-secure rooms within the building. These rooms had guards and scanners searching for any electronics, thumb drives, etc.
Get the picture? This is waaaaay beyond tinfoil hats.
One day on his home network he caught a network breach coming in over a firmware update for his laser printer.