Just wondering, do laptops' webcam LEDs usually work through software support or through a hardware connection to the the camera? It seems like a no-brainer, but one can never be sure about these things...
Not sure what LEDs you are referring to but in any case, the answer is likely both. Webcams are little more than the lenses. They may take in light on their own, but the brains are in the software controlled through hardware.
I think he wants to know how much to trust the activity indicator and whether or not the camera could be "watching" him without the LED lighting up. I cannot answer that, but am curious as well.
Well, indicator LEDs can fail so I think the only way to make sure an integrated camera is not watching you is to put a piece of black tape over the lens! Or you can go into services and disable any having to do with the camera. And you should be able to disable the camera in the BIOS.