Daniel Ganninger: A Computer Spying Method You’ve Probably Never Heard Of

5/06/2020 - 08:20

What if someone just around a corner could see what you’re looking at on your computer screen without using a physical or wireless connection and without ever being in your system? It sounds like fiction, and it sounds scary, but it’s based in reality, and it’s been around a long time.
The process is called Van Eck phreaking. Ever heard of it? Not many people have. Van Eck phreaking is the detection of electromagnetic emissions used to spy on what is displayed on a CRT (cathode ray tube) or LCD (liquid-crystal display) monitor as well as the inputs coming from a computer keyboard, a printer, or some other electronic device.