Spy Tech: Build Your Own Laser Eavesdropper

?w=800" alt="DIY laser microphone on cutting mat"/>Laser microphones have been around since the Cold War. Back in those days, they were a favorite tool of the KGB – allowing spies to listen in on what was https://hackaday.com/2025/03/18/spy-tech-build-your-own-laser-eavesdropper/

https://hackaday.com/2025/03/18/spy-tech-build-your-own-laser-eavesdropper/