# Guide: 3 Built-In macOS Security Settings for Mac Users

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Publisher: Savlume
Published on Savlume: 2026-10-11T12:30:00.000Z
Content updated: 2026-10-11T14:50:50.614Z
Source publication time: 2026-10-11T12:30:00.000Z
Offer status: Unverified

A recent report from Tom’s Guide highlights three built-in macOS settings designed to strengthen device and data security, particularly for users who travel or connect to public Wi-Fi. The author recommends enabling the Firewall and Stealth Mode under Network settings to block unwanted incoming connections, and activating FileVault in Privacy & Security to encrypt the Mac's SSD against physical theft. For heightened protection, users can also turn on Lockdown Mode or disable Safari's automatic file-opening feature. However, the source notes that Firewall may occasionally cause software connectivity issues, while Lockdown Mode introduces significant trade-offs by restricting unknown FaceTime calls, message attachments, USB connections, and certain web tools like Google Sheets.

## Buying guide

Tom’s Guide recommends enabling several built-in macOS security settings, especially for people who travel, while noting that Lockdown Mode can disrupt some features and services.

Attribution: Tom’s Guide
AI-assisted summary of source text, not a Savlume hands-on test.

- Source-reported strength: Covers network protection, disk encryption, and Lockdown Mode.
- Source-reported strength: Provides navigation paths for the settings and recovery-key choices.
- Source-reported limitation: Lockdown Mode can affect calls, messages, link previews, websites, and interface elements.
- Source-reported limitation: The guide notes that Firewall can cause connectivity issues with some software.

### What recovery-key options does FileVault provide?

The guide says you can back up the key to iCloud or create a local recovery key.

### What are some trade-offs of Lockdown Mode?

It can block calls from unknown contacts and some attachments, remove link previews, and slow down or break some websites.
## Evidence and sources

Source report only. Merchant price, availability, seller, and conditions have not been independently confirmed.
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Tom’s Guide: https://www.tomsguide.com/computing/online-security/3-hidden-macos-security-features-you-need-to-turn-on-right-now

AI-assisted summary of cited source material. Not a hands-on review. Prices and availability can change.