Some Mac users might see an orange/red shield and vulnerable protection message after the Sophos Home Mac upgrade, or when upgrading their macOS versions.  These vary based on how impactful the update is, if it changes a lot of system settings, you might need to re-enable Sophos Home. 

For video instructions, please see: 

• MacOS Ventura and Sonoma --- Click Here
• Monterey --- Click Here

1. Make sure macOS Sonoma is up-to-date Apple - Keep your Mac up to date. 
2. Reboot the computer. If the Welcome popup appears after the reboot, you can skip step 2 and refer to step 3 onward with the drag-and-drop process 
3. Trigger a scan:  click the Sophos Home shield -> click the 3 dots -> click Scan (It does not matter if it's a full scan or a fast scan, both will work for this) When you Hit scan, the Welcome to Sophos Home window should appear if any permissions are missing. 
4. Once you see the "Welcome to Sophos",  click on Let's Start 
5. Use the "Click here" button to access Full Disk Access
6. Unlock the padlock in Security & Privacy | Ventura users scroll down to Full Disk Access
7. Drag and drop the icons from the Welcome to Sophos Home window into the Full Disk Access list
8. Ensure all the components added have been checked-marked/slider-enabled
   
9. Check if the shield goes back to normal stating your device is protected

If the issue persists, please submit an email or start a chat with our live support to investigate further. - Contacting Sophos Home Support

Network filtering applications such as Little Snitch or VPN software running in tandem with Sophos Home or other software with network filtering capabilities, may trigger errors or not work at all. If you experience issues with Sophos Home or another network based program, we recommend either disabling or removing the other program and re-testing functionality.