Hi all In the days of CRT monitors one way the security of a computer system could be compromised non-intrusively (ie without amending the installed code) was by picking up the radio-frequency leakage from the tube in the monitor. This could only be done from near by, but where possible it enabled the spy to see what was on the screen -- almost everything that you typed (aprt from passwords that were blanked or starred out). This was a remote form of shoulder surfing, where someone looks over your shoulder in an environent like an internet cafe.
Nowadays we do not have to worry about CRT monitors. But TVs are increasingly delivered with their own internet connection, making it easy to watch You-Tube (etc) without needing a separate computer or phone. Clearly there is a computer inside which can be hacked, and if so a remote shoulder surfing attack would be very possible. Is the same true of monitors and of TVs that do not have an apparent internet link? The digital tech to draw a picture from the input is unlikely to be done by traditional electronics, but being all digital is likely done by a miniporcessor of some kind in all digital displays. To put my question in the most provocative way on this forum: if there much point securing the OS when the monitor might be an easier target for those out to (umm) monitor our reading and our keystrokes? This thught has only just come to me, and I wonder if there is already some available mitigation? Any ideas? Or am I being overly cautious? R~~ Any ideas? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/CAK3jUKoDK8kX2jhx3J-m%3D-%3DrRdVxpX7uaJCa5emwpXdSm-CWxg%40mail.gmail.com.
