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Open-source macOS hardening

5 macOS hardening whose code is public under an OSI-approved license, rated for privacy with evidence. Picks first, then by score.

  1. BlockBlock Grade B

    A free macOS tool from Objective-See that monitors common persistence locations and alerts when software tries to install itself to run at startup.

    GPL-3.0. Source code

  2. KnockKnock Grade B

    A free macOS tool from Objective-See that lists software installed to run persistently, such as launch agents, login items and extensions, to help find malware.

    GPL-3.0. Source code

  3. OverSight Grade B

    A free macOS tool from Objective-See that alerts when the microphone or webcam is turned on and shows which process is using it.

    GPL-3.0. Source code

  4. Stronghold Grade B

    A command-line tool that configures macOS firewall, logging, sharing and other security settings. It was designed for older macOS releases.

    MIT. Source code

  5. Santa Grade D

    A binary and file access authorization system for macOS that allows or blocks apps by hash, signing certificate or team ID. Created at Google and now maintained by North Pole Security.

    Apache-2.0. Source code

Compare all 5 macOS hardening, open source or not.