Baseline and harden these machines

Macs

We move daily work onto standard accounts, enrol every Mac in device management, keep Gatekeeper and System Integrity Protection switched on, turn on FileVault with recovery keys you hold, and keep work files out of personal iCloud. Score your Macs below to see which of those you already have.

Get my score

About two minutes. No email to see the result.

Step 2 of 5 Size

Fresh start, or adding protection to employee machines?

It sets the price. A machine nobody uses yet has nothing to work around, so it costs less to lock down. Got both kinds? Pick already in use.

New machines, set up from scratch Nothing is in daily use yet, so we build the baseline in before anyone logs in.
Machines already in use People are working on them today, so we find what is there first and harden around the work.
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No email until step 5.

What we change

  • Admin and standard accounts
  • FileVault and recovery key escrow
  • MDM enrolment and configuration profiles
  • App, browser extension and AI tool controls
  • USB storage and cloud sync rules
  • Offboarding and wipe

Tools we use

The kit behind the fixes, written up for whoever has to run it.

Tool

Lynis Security Auditor for Macs

Lynis is the free, open-source security auditor from CISOfy, and it runs on macOS as happily as it does on Linux. Download the archive, run lynis audi...

Read the write-up →
Guide

FileVault Guide: Encrypt Every Mac, Keep Every Key

FileVault is the full-disk encryption built into macOS, so a Mac left on a train opens for nobody without the password or its recovery key. This guide...

Read the write-up →
For the admin who asks: CIS and STIG references

The questions map to these benchmark topics. Section numbers move between releases, so we check them against the current benchmark at each audit instead of quoting them here.

  • CIS Apple macOS Benchmark: System Access, Authentication and Authorization
  • CIS Critical Security Controls: Secure Configuration of Enterprise Assets and Software
  • CIS Apple macOS Benchmark: Gatekeeper and System Integrity Protection
  • CIS Critical Security Controls: Inventory and Control of Software Assets
  • CIS Google Chrome and Safari Benchmarks: Extensions
  • CIS Apple macOS Benchmark: iCloud
  • CIS Apple macOS Benchmark: FileVault
  • CIS Critical Security Controls: Data Protection
  • CIS Apple macOS Benchmark: Software Updates
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