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A comment on How I discovered a hidden microphone on a Chinese NanoKVM. Parent comment

Re:How I discovered a hidden microphone on a Chinese NanoKVM by runjake on Saturday December 06, 2025 @12:14PM (#46174891)
Yes, just modulate the fan noise on the transmitter, and apply a filter on the receiver.
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Re:How I discovered a hidden microphone on a Chinese NanoKVM by faidit on Saturday December 06, 2025 @09:00PM (#46178525)
Doesn't being able to modulate the fan presume you already control the target device?
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Re:How I discovered a hidden microphone on a Chinese NanoKVM by alextingle on Sunday December 07, 2025 @05:50AM (#46180795)
It's possible to get malware onto even air-gapped machines. This is a way to then communicate across the air-gap.
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