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macOS Hardening Guide

Privacy-first macOS hardening with MDM profiles: FileVault, telemetry control and outbound firewalling for sovereignty-focused setups.

GuideOpSec

macOS baseline path
  1. 01
    Erase + reinstall
    Recovery Mode
  2. 02
    FileVault
    Full-disk encrypt
  3. 03
    MDM / privacy
    Telemetry down
  4. 04
    Outbound FW
    Little Snitch-class

1. Factory Reset

  • Erase the Mac and reinstall macOS via Recovery Mode.
  • Enable FileVault during setup.
  • Create a new admin account with a strong passphrase.

2. Core Hardening

Run the recommended scripts and apply MDM profiles for:

  • Disabling unnecessary services
  • Enforcing strong passwords
  • Controlling iCloud and telemetry

3. Key Privacy Steps

  • Disable Siri, Spotlight suggestions, and analytics
  • Use Little Snitch or Lulu for outbound control
  • Enable Gatekeeper + XProtect
  • Require password after sleep

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