Just stop using your electronic devices. Not like they don’t all have monitors built in already anyway. Every connected device could be sending screenshots home and we’d never know. I mean, I guess you could use something like Wireshark to monitor your home network, but something tells me nowadays there are ways around even that. I’m not a certified network tech or even a script kiddie, but I don’t trust my tech as far as my dog can throw it. I just try to secure through obfuscation as much as possible. Everyone thinks I have carbon monoxide poisoning, but it’s a small price to pay for peace of mind - even a small one.
You & others might be interested in this:
https://insights.sei.cmu.edu/library/field-stripping-a-weapons-system-building-a-trustworthy-computer-video/
and maybe this:
https://en.wikipedia.org/wiki/Intel_Management_Engine
Do what the Germans did in ww1 when they knew their diplomatic code was broken but couldn’t change it. They put the important stuff in plain sight and treated it like junk mail and encoded the boring stuff.
I’m just saying that, unless you built the device you’re using, and you know what every component does, and you know what it’s doing when, and you know it wasn’t manufactured by a foreign state-owned manufacturer with a penchant for putting spy chips in their devices, then you can’t truly trust anything you do on it, encrypted or not. It doesn’t really matter, if the software is being encrypted by backdoored hardware.
