Control App File Access on macOS Catalina: A Simple Guide

macOS Catalina introduced stricter app file access controls, enhancing your privacy and security. This simple guide walks you through understanding and managing these settings. Learn how to grant or deny specific apps access to your documents, photos, and other files, ensuring only authorized applications can access your sensitive data. Take control of your file permissions today and boost your Mac's security.

Step-by-Step Instructions

  1. Access System Preferences

    • Click the Apple logo in the top-left corner of your Mac screen, then select 'System Preferences'.
    Click the Apple logo in the top-left corner of your Mac screen, then select 'System Preferences'.
    Access System Preferences
  2. Open Security & Privacy

    • In System Preferences, click on 'Security & Privacy'.
    In System Preferences, click on 'Security & Privacy'.
    Open Security & Privacy
  3. Navigate to Files & Folders

    • Click on 'Files & Folders' in the left-hand pane.
    Click on 'Files & Folders' in the left-hand pane.
    Navigate to Files & Folders
  4. Manage App Access

    • Review the list of apps on the right. Uncheck the box next to any app you want to restrict from accessing files and folders.
    Review the list of apps on the right. Uncheck the box next to any app you want to restrict from accessing files and folders.
    Manage App Access
  5. Authenticate Changes (If Necessary)

    • If prompted, click the padlock icon at the bottom, enter your password, and then click the unlock button to make changes.
    If prompted, click the padlock icon at the bottom, enter your password, and then click the unlock button to make changes.
    Authenticate Changes (If Necessary)
  6. Close System Preferences

    • Close the System Preferences window to save your changes.
    Close the System Preferences window to save your changes.
    Close System Preferences
[RelatedPost]

Tips

  • N/A

Common Mistakes to Avoid

1. Ignoring System Integrity Protection (SIP)

Reason: Attempting to modify critical system files without disabling SIP (though generally not recommended) can lead to system instability or failure. Many apps require elevated privileges to access specific files.
Solution: Temporarily disable SIP in Recovery Mode, make necessary changes, and re-enable SIP for enhanced security.

2. Granting Excessive Permissions

Reason: Giving an application unrestricted access to all files and folders creates a significant security vulnerability. Malware could potentially exploit these broad permissions.
Solution: Use the System Preferences > Security & Privacy > Privacy settings to grant only the necessary file access permissions on a per-app basis.

FAQs

Why does macOS Catalina ask for permission to access my files?
Catalina's stricter file access controls are a security feature. Apps must explicitly request permission to access your files, preventing unauthorized access and protecting your privacy.
What happens if I deny an app access to my files?
The app will likely be unable to function correctly, or at least certain features requiring file access will be unavailable. You might see error messages indicating the app needs permission.
How do I change an app's file access permissions after I've already granted or denied them?
Go to System Settings > Privacy & Security > Files and Folders. Find the app in the list and adjust its permissions. You can modify access to specific folders like Documents or Pictures.