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> decipher TV by watching the flickering on the wall. Off topic, but... this has been done. Amazes me to this day. "Optical Time-Domain Eavesdropping Risks o

by IvyMike 12y ago

> decipher TV by watching the flickering on the wall. Off topic, but... this has been done. Amazes me to this day. "Optical Time-Domain Eavesdropping Risks of CRT Displays" http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf