system extension alert

If you get an alert about a system extension

You may see an alert on your Mac that says that a program loaded or tried to load a system extension signed by the developer of that extension. 

  • The alert may ask you to open Security & Privacy preferences to allow the extension. You may also need to restart your Mac.

  • The alert may ask you to contact the developer for support because the extension needs to be updated or will be incompatible with a future version of macOS.

  • The alert may inform you that it will damage your computer and has been blocked.