Webcam covers surged in popularity during the 2010s as a simple privacy solution, but Apple has been warning since 2020 that these accessories are largely unnecessary and potentially harmful. The hardware-based privacy indicator on modern Macs makes most covers redundant for security purposes.

Modern MacBook cameras (post-2008 Intel and Apple Silicon models) physically link the camera sensor to the green LED indicator through shared circuits. This means hackers cannot activate the camera without also triggering the light, unlike older Macs where software controlled both components. Security researcher Patrick Wardle's OverSight tool provides additional monitoring by alerting users whenever the webcam activates.

Beyond privacy myths, these covers pose real physical risks. Apple explicitly warns against placing anything thicker than 0.1 mm between the display and chassis when closing the lid. Today's ultra-thin Retina panels sit within extremely tight tolerances, making screen damage from sliding covers a genuine concern rather than a theoretical one.

For most users, relying on built-in hardware protections and monitoring tools offers better security than physical covers that actually compromise device integrity. The privacy theater of webcam covers has outlived its usefulness.