Keep your Mac safe from intruders, malware, and more!

Take Control of
Securing Your Mac

Glenn Fleishman

Secure your Mac against attacks from the internet and physical intrusion with the greatest of ease. Glenn Fleishman guides you through configuring your Mac to protect against phishing, malware, network intrusion, social engineering, and invaders who might tap physically into your computer. Glenn teaches how to secure your data at rest and in motion. Learn about built-in privacy settings, the Secure Enclave, FileVault, sandboxing, VPNs, recovering a missing Mac, and much more. Covers Mojave, Catalina, and Big Sur.

All Take Control books are delivered in three ebook formats—PDF, EPUB, and Mobipocket (Kindle)—and can be read on nearly any device.


The digital world has never seemed more riddled with danger, even as Apple has done a fairly remarkable job across decades at keeping our Macs safe. But the best foot forward with security is staying abreast of past risks and anticipating future ones. Take Control of Securing Your Mac gives you all the insight and directions you need to ensure your Mac is safe from external intrusion and thieves or other ne’er-do-wells with physical access.

Security and privacy are tightly related, and Take Control of Securing Your Mac helps you understand how macOS has increasingly compartmentalized and protected your personal data, and how to allow only the apps you want to access specific folders, your contacts, and other information.

Also available: You can save money by buying this book as part of a three-book bundle, which also includes Take Control of Wi-Fi Networking and Security and Take Control of iOS & iPadOS Privacy and Security. Buy all three books for $25.78, which is 40% off the combined cover prices of $42.97. Add 3-Book Bundle to Cart

Here’s what this book has to offer:

  • Master a Mac’s privacy settings
  • Calculate your level of risk and your tolerance for it
  • Learn why you’re asked to give permission for apps to access folders and personal data
  • Moderate access to your audio, video, and other hardware inputs and outputs
  • Get to know the increasing layers of system security through Mojave, Catalina, and Big Sur
  • Prepare against a failure or error that might lock you out of your Mac
  • Share files and folders securely over a network and through cloud services
  • Set a firmware password and control other low-level security options to reduce the risk of someone gaining physical access to your Mac
  • Track and recover a Mac—or erase it remotely—if it’s lost or stolen
  • Understand FileVault encryption and protection, and avoid getting locked out
  • Investigate the security of a virtual private network (VPN) to see whether you should use one
  • Learn how the Secure Enclave in Macs with a T2 chip or M-series Apple silicon affords hardware-level protections
  • Dig into ransomware, the biggest potential threat to Mac users, but still a largely theoretical one
  • Decide whether anti-malware software is right for you
Glenn Fleishman

About Glenn Fleishman

Glenn Fleishman is a veteran technology writer who has contributed to dozens of publications across his career, including Macworld, Fast Company, and Increment. He has also written dozens of editions of books in the Take Control series. He is currently building 100 tiny type museums full of real printing artifacts. Glenn lives in Seattle with his wife and two children.

What’s New in Version 1.0.2

In this version, I rewrote the Introduction for improved clarity and readability.

What Was New in Version 1.0.1

This minor update corrects a handful of typos, clarifies some text that may have been difficult to understand, and adds a few small but useful details.

  • Read Me First
    • About a Previous, Related Title
    • Updates and More
    • What’s New in Version 1.0.2
    • What Was New in Version 1.0.1
  • Introduction
  • Quick Start to Securing Your Mac
  • Start with Security Basics
    • What Security Means
    • Determine Your Risk Profile
  • Set Up Basic Security
    • Keep Your Software Up to Date
    • Manage Basic Security and Privacy Settings
    • Configure Accounts & Groups Securely
  • Fortify Yourself and Your Mac
    • Gatekeeper Protections
    • Keep Malware off Your Mac
    • Umbrella Protection with a VPN
  • Share Resources Securely
    • Allow Network Access to Services
    • Share Carefully via Cloud Services
  • Learn macOS Startup and Disk Protections
    • Understand the Secure Enclave
    • Protect a Drive with FileVault
    • System File Protections
    • Startup Protections
    • Secure Deletion
  • Keep Personal Data Private
    • Keep Your Data Safe from Other Local Users
    • Sandboxing Deters Invasion
    • Configure Your Mac’s Privacy Settings
    • Protect Your Passwords
  • Regain Access
    • Prepare for a Future Lockout
    • Recover Access to an Account
    • Recover from a Lost Firmware Password
  • Recover a Lost or Stolen Mac
    • Safeguard Yourself and Your Mac
    • How Find My Works
    • Use Find My for Tracking
    • Take Remote Action
  • About This Book
    • Ebook Extras
    • About the Author
    • About the Publisher
  • Copyright and Fine Print


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