They shouldn’t even be connected to the internet.

Yes. What’s also true is that sometimes they must be. You will disagree until you find the exception.

There’s nothing great about companies dropping support and also keeping the code in-house so we can’t contract out improvements and fixes, but unless we change that we’re stuck in a world where ridiculously expensive hardware either needs an old OS or becomes astoundingly expensive e-waste. And yes, it needs to connect sometimes. And yes, that’s a scary as shit.