Gruber has an article about this; he mentions someone who is a former Apple engineer saying it's now implemented entirely in hardware. https://daringfireball.n

Gruber has an article about this; he mentions someone who is a former Apple engineer saying it's now implemented entirely in hardware. https://daringfireball.net/2019/02/on_covering_webcams https://daringfireball.net/2019/02/on_covering_webcams