macOS Tahoe Security Checklist

18 items · Security · Medium difficulty · 2 hours

Practical steps to harden macOS 26 (Tahoe) for IT teams and auditors.

• Review NIST Tahoe guidance documents

  Download and read HTML/PDF/SCAP files from the NIST macOS Security repo.

• Test recommended settings in a non-production environment

  Use lab devices or VMs before applying to live systems to avoid lockouts.

• Backup systems and user data before changes

  Create full backups or snapshots to enable rollback if needed.

• Enroll Macs in a managed MDM solution

  Use your enterprise MDM to deploy profiles and enforce baselines.

• Harden authentication and user accounts

  Apply account and login controls across devices.

• Enable FileVault full-disk encryption

  Encrypt system volumes to protect data at rest.

• Require strong passwords and set expiration policies

  Enforce complexity, minimum length, and rotation in policy.

• Disable automatic login and guest account access

  Prevent bypassing authentication on physical devices.

• Enable and configure the macOS firewall

  Turn on the firewall and limit incoming connections.

• Enable System Integrity Protection and Secure Boot

  Ensure SIP and secure boot are active to protect system integrity.

• Install macOS updates and security patches

  Keep systems current with Apple security releases and patches.

• Disable unnecessary services and file sharing

  Turn off SSH, AFP, SMB or other services not needed in production.

• Deploy configuration profiles via MDM

  Push vetted profiles to enforce settings centrally.

• Test smartcard and authentication profiles in the lab

  Validate smartcard profiles to avoid locking out password logins.

• Enable audit logging and central log collection

  Forward logs to a SIEM or central collector for monitoring.

• Implement endpoint protection (AV/EDR)

  Install and configure supported endpoint detection and response tools.

• Document configurations, testing results, and change history

  Record applied settings, test outcomes, and dates for audits.

• Subscribe to the NIST macOS Security GitHub for updates

  Watch the repo for new guidance, issues, and revised checklists.

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