Don't close your MacBook, MacBook Air, or MacBook Pro with a cover over the camera...

AKA, "IF YOU COVER YOUR CAMERA, THE FEDS CAN'T SPY ON YOU!" 😁

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Don't close your MacBook, MacBook Air, or MacBook Pro with a cover over the camera - Apple Support

Closing your Mac laptop with a camera cover on it might damage your display. Designed to protect your privacy, Mac laptops have a camera indicator light to let you know when the camera is on.