I know a lot of people a little scared of “the big brother” type of stuff: “not sharing my photos with google photos”, “making sure to disable location services”, etc (like @Pharap for example ? )
So I wonder what is their opinion about the posibility of capturing whats on a screen just using the residual noise of the screen circuitry (not the transmission)
I have been playing with that tool and I was really surprised that it actually works. When I was in hischool I got hook to a book called F2F https://www.goodreads.com/book/show/1420758.F2f that portrayed a “hacker” eavesdroping on a crime remotely with his “CRT” remote capturing tool (he was mostly spying on people’s screens but he got into a transmission of an ongoing torture)…
So… that science fiction thing now it is way easier/cheaper to implement, and does not only require high-energy-photon-emiting-CRTs to work.