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Comment by rdl

6 years ago

If you do this audio-only there isn’t a telltale LED on the camera to give away that you are doing it. I’m way more worried about audio bugging than a webcam (which really only has the user’s face)

That's a hard problem to solve. An audio alert that the microphone has turned on would obviously be rejected by consumers, unless maybe some fancy processing were used to remove that alert sound from the recording. But even so, an audio alert would presumably only play once while the indicator light remains illuminated the entire time.

On the other hand while an indicator light is good for the camera, it's not sufficient for audio. If the computer is facing away from me, then the camera can't see me so my inability to see the camera light isn't that huge of a deal. But audio goes around corners so I could be recorded by a computer not immediately in eyesight.

If there were some reasonable third sensory channel to available for "out of band" communication, that would be ideal. But consumers will reject smell-alerts.

A hacker could turn the light on and off before you even knew what to do about it. All they need is a picture of your face to do something nefarious.