Many people are seen to put strips of tape and other adhesive materials on their MacBook camera in an attempt to thwart any potential hacker from accessing their system and camera. MacBooks have a green "camera light" on the right side of the FaceTime camera on the front that seems to turn on when the camera is activated (i.e. the sensor is provided energy and transmits a signal to the motherboard).
Does the camera of a modern MacBook require that the green camera light turns on as well? In other words, is the camera light hardwired to the camera in such a way that if the camera is supplied electricity, that itself would enable the camera light? This would prevent a hacker from being able to obtain any information from the camera without the user being notified by the green light.
I've seen this question come up again and again, but no satisfactory/definitive answers were provided. The last time such a question was posted received an answer that linked to a research paper showing that it is possible to activate the camera without activating the camera light—but only on pre-2008 Macs. The answers to another question question come to a similar conclusion. A user did say that there was "[no] proof that you can do the same in post-2008 laptops," but this doesn't prove that the camera light is in fact hard-wired to the camera.
The fact that there is no proof for such an important security feature is rather strange. There must have been a group of designers and engineers who created the camera system—surely they would know and would have publicized this perhaps in an Apple support article or in an interview? Or perhaps this could have been discovered in a teardown by a group at iFixit (although I am no electrical engineer), but this doesn't seem to have happened yet. Most importantly, I would expect Apple to tout this as a security feature, but there is no mention of it on their site. Is there really 'no proof' as to whether the camera and camera light is hardwired or not?