title: "macOS 26.0: Security Configuration - US CMMC 2.0 Level 1"
description: |
  This guide describes the actions to take when securing a macOS 26.0 system against the US CMMC 2.0 Level 1 security baseline.

  Information System Security Officers and benchmark creators can use this catalog of settings in order to assist them in security benchmark creation. This list is a catalog, not a checklist or benchmark, and satisfaction of every item is not likely to be possible or sensible in many operational scenarios.
authors: |
  *macOS Security Compliance Project*

  |===
  |John Mahlman|Leidos
  |Bob Gendler|National Institute of Standards and Technology
  |Dan Brodjieski|National Aeronautics and Space Administration
  |Allen Golbig|Jamf
  |===
parent_values: "recommended"
profile:
  - section: "authentication"
    rules:
      - auth_smartcard_allow
      - auth_smartcard_enforce
      - auth_ssh_password_authentication_disable
  - section: "icloud"
    rules:
      - icloud_addressbook_disable
      - icloud_appleid_system_settings_disable
      - icloud_bookmarks_disable
      - icloud_calendar_disable
      - icloud_drive_disable
      - icloud_freeform_disable
      - icloud_game_center_disable
      - icloud_keychain_disable
      - icloud_mail_disable
      - icloud_notes_disable
      - icloud_photos_disable
      - icloud_private_relay_disable
      - icloud_reminders_disable
      - icloud_sync_disable
  - section: "macos"
    rules:
      - os_account_modification_disable
      - os_airdrop_disable
      - os_appleid_prompt_disable
      - os_authenticated_root_enable
      - os_config_data_install_enforce
      - os_dictation_disable
      - os_filevault_autologin_disable
      - os_firmware_password_require
      - os_gatekeeper_enable
      - os_genmoji_disable
      - os_handoff_disable
      - os_home_folders_secure
      - os_httpd_disable
      - os_icloud_storage_prompt_disable
      - os_image_playground_disable
      - os_iphone_mirroring_disable
      - os_mail_smart_reply_disable
      - os_mail_summary_disable
      - os_nfsd_disable
      - os_notes_transcription_disable
      - os_notes_transcription_summary_disable
      - os_on_device_dictation_enforce
      - os_photos_enhanced_search_disable
      - os_rapid_security_response_allow
      - os_rapid_security_response_removal_disable
      - os_recovery_lock_enable
      - os_root_disable
      - os_safari_reader_summary_disable
      - os_sip_enable
      - os_siri_prompt_disable
      - os_skip_apple_intelligence_enable
      - os_skip_unlock_with_watch_enable
      - os_tftpd_disable
      - os_unlock_active_user_session_disable
      - os_uucp_disable
      - os_writing_tools_disable
  - section: "systemsettings"
    rules:
      - system_settings_automatic_login_disable
      - system_settings_bluetooth_sharing_disable
      - system_settings_critical_update_install_enforce
      - system_settings_diagnostics_reports_disable
      - system_settings_external_intelligence_disable
      - system_settings_external_intelligence_sign_in_disable
      - system_settings_find_my_disable
      - system_settings_firewall_enable
      - system_settings_firewall_stealth_mode_enable
      - system_settings_guest_access_smb_disable
      - system_settings_guest_account_disable
      - system_settings_improve_assistive_voice_disable
      - system_settings_improve_search_disable
      - system_settings_improve_siri_dictation_disable
      - system_settings_internet_accounts_disable
      - system_settings_internet_sharing_disable
      - system_settings_loginwindow_prompt_username_password_enforce
      - system_settings_media_sharing_disabled
      - system_settings_personalized_advertising_disable
      - system_settings_rae_disable
      - system_settings_screen_sharing_disable
      - system_settings_security_update_install
      - system_settings_siri_disable
      - system_settings_smbd_disable
      - system_settings_softwareupdate_current
      - system_settings_ssh_disable
      - system_settings_ssh_enable
      - system_settings_system_wide_preferences_configure
  - section: "Inherent"
    rules:
      - os_logical_access
      - os_malicious_code_prevention
  - section: "Permanent"
    rules:
      - os_auth_peripherals
  - section: "Supplemental"
    rules:
      - supplemental_controls
      - supplemental_filevault
      - supplemental_firewall_pf
      - supplemental_password_policy
      - supplemental_smartcard