Q. Is this really as harmful as you think?
A. Go to your parents house, your grandparents house etc and look at their Windows PC, look at the installed software in the past year, and try to use the device. Run some antivirus scans. There’s no way this implementation doesn’t end in tears — there’s a reason there’s a trillion dollar security industry, and that most problems revolve around malware and endpoints.
You didn’t read the article.
We do know the answers to these questions. And if I can use a 2 line script to exfiltrate all your screen data for days/weeks in under a few MB of data.
So better hope you, never, ever, ever run unauthorized or malicious code, because now it basically has a honeypot of top priority data, always stored in a known location and compressed for easy uploads.
What kind of malicious code would be able to do that?