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Fix verification of every video file on macOS

When you open a video file (MP4, MKV, MPEG, etc.) in macOS, is GateKeeper (macOS Security) attempting to “verify” the file on first open? Run this in Terminal:

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defaults write com.apple.LaunchServices LSQuarantine -bool NO

All video files in macOS will now open without being quarantined and verified. Keep in mind If you run future macOS software updates, you made need to re-enable the Terminal commands above.

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