@fittonia to Privacy • 3 years agoSpies can eavesdrop by watching a light bulb’s variations | Ars Technicaarstechnica.comexternal-linkmessage-square5arrow-up120arrow-down10file-text
arrow-up120arrow-down1external-linkSpies can eavesdrop by watching a light bulb’s variations | Ars Technicaarstechnica.com@fittonia to Privacy • 3 years agomessage-square5file-text
Definitely cool, but not a new idea.