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Some group either got caught or proved you could exfiltrate data via the fans on the air gapped computer to the microphone on the connected one. It was obviousl
by paulie_a 8y ago
Some group either got caught or proved you could exfiltrate data via the fans on the air gapped computer to the microphone on the connected one. It was obviously incredibly low speed but possible.
I honestly don't recall if this was just a trial or it was used in the field by a spy agency
- Nition 8y agoI saw one where they got audio out of a silent video of sound waves in the area vibrating a potato chip packet on the ground. http://news.mit.edu/2014/algorithm-recovers-speech-from-vibrations-0804 http://news.mit.edu/2014/algorithm-recovers-speech-from-vibr...
- disqard 8y agoThat was impressive work, but they do require a camera that can record at 2000-6000 fps.
- Nition 8y agoCheck out the last portion of the video. They got something out of a 60fps camera, although it's far from good quality.
- jacquesm 8y agoThat's logical. Nyquist won't budge just because your idea is clever. https://en.wikipedia.org/wiki/Nyquist_rate https://en.wikipedia.org/wiki/Nyquist_rate
- Nition 8y agoThey actually got Nyquist to budge to some extent. Check out the last portion of the video. They took advantage of the fact that digital cameras tend to scan line by line over a short period of time, so there's actually more timing information available in an image than the base 60fps.
- schoen 8y agoIt looks like you might be thinking of this: https://www.wired.com/2016/06/clever-attack-uses-sound-computers-fan-steal-data/ https://www.wired.com/2016/06/clever-attack-uses-sound-compu... https://www.wired.com/story/air-gap-researcher-mordechai-guri/ https://www.wired.com/story/air-gap-researcher-mordechai-gur...
- deleted 8y ago[deleted]