See Hacker’s Infrared Laser Spy on Laptop Keystrokes

Tech Read Team
2 Min Read

The Revolutionary Laser Microphone: Sound into Light into Radio

In a groundbreaking development, Kamkar claims to have created the first laser microphone modulated in the radio frequency domain. This innovative feat allows sound to be converted into light, then radio waves, and back to sound again. By harnessing radio signals, Kamkar has unlocked a world of possibilities for communication and surveillance.

Samy Kamkar at his home workstation
Photograph: Roger Kisby

Kamkar’s ingenuity extends beyond just capturing keystrokes. He leverages sophisticated software to convert the sounds into legible text, a technique long exploited by security researchers. By delving into the realm of laser spying, Kamkar endeavors to refine existing methods and enhance the hardware setup and signal processing for improved outcomes.

Kamkar’s laser spying kit: An infrared laser…
Photograph: Roger Kisby
…attached to an oscilloscope’s signal generator, current controller, temperature controller, and amplifier power supply.
Photograph: Roger Kisby

The clarity and precision of Kamkar’s laser microphone technology are evident in the remarkable results he has achieved. His tool not only excels in detecting keystrokes but also in capturing general room audio by bouncing an infrared laser off a window, yielding exceptionally clear sound quality. Surpassing other samples of laser microphone audio available online, Kamkar’s device showcases a new level of sophistication in surveillance technology.

While laser microphones have existed for years, Kamkar acknowledges the potential advancements in commercial and secretive government surveillance technologies. Despite this, he remains committed to transparency by sharing the complete schematics of his DIY laser microphone spy kit. His mission is clear: to educate the public on emerging surveillance methods and encourage vigilance against potential threats.

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