diff --git a/content/posts/macos/macOS Security Overview b/content/posts/macos/macOS Security Overview
index 774d894..24a4b6e 100644
--- a/content/posts/macos/macOS Security Overview	
+++ b/content/posts/macos/macOS Security Overview	
@@ -127,4 +127,8 @@ Newer system extensions don't directly modify the kernel, but they use APIs that
 
 Be careful installing apps that require Administrator privileges to run, you're giving them a lot of power in your system.
 
-**Note**: When mounting a .dmg file, usually a graphic will come up asking you to move the app to your Applications folder, which will trigger an Administrator popup. The app isn't actually running, you're just moving it to the systemwide Applications folder so that all users on the system can run it. If you're not comfortable with this, you can simply drag the app anywhere else and run it.
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+**Note**: When mounting a .dmg file, usually a graphic will come up asking you to move the app to your Applications folder, which will trigger an Administrator popup. The app isn't actually running, you're just moving it to the systemwide Applications folder so that all users on the system can run it. If you're not comfortable with this, you can simply drag the app anywhere else and run it.
+
+## Firewall
+
+macOS comes with a built-in [firewall](https://support.apple.com/guide/mac-help/change-firewall-settings-on-mac-mh11783/mac). Make sure it's eanbled at the very least, but you can block all incoming connections for the best security/privacy.
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