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Comment by figmert

12 days ago

How do people prevent this? I have yet to find a device or tool that would discover such hidden cameras.

A lot of spy cameras have an IR light that will be visible if viewed through your phone camera, so turning out the lights and doing a quick phone camera sweep can help.

I'm guessing this won't apply to all cameras though.

  • Phone cameras typically have IR filters that filter out that light. You need to modify the camera (or have an exceptionally cheap one?) to not have it filtered.

I saw an documentation about this some time ago, unfortunatley there is no reliable consumer method hat detects a well hidden non IR based camera.

it needs to draw power, so the ultimate way is to look for anything generating radio waves. there a few inductive methods to "listen" to electrical pulses near by, but you have to sweep every part of the room, take apart every source of EM. e.g.: light fixtures drawing power while turned off. same with wall sockets.