Will a webcam cover damage my MacBook screen?

Apple warns that covers thicker than 0.1mm can damage MacBook screens. In practice, covers under 0.7mm work fine for most users, but Apple's warranty may not cover damage from accessories. Use at your own discretion.

Do webcam covers block the IR sensor for Windows Hello?

Some webcam covers can block the infrared camera used for Windows Hello facial recognition. Look for covers specifically designed to leave the IR sensor uncovered, or use a fingerprint reader as your alternative biometric login.

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