You installed Sophos Home on a computer running macOS 10.13 High Sierra or above, but you did not receive any notification to allow the Sophos Home kernel extensions (KEXT).

Cause

Notifications to allow Sophos Home KEXT are not received when:

• The kernel extensions are already enabled.
• Sophos Home has already been installed in the past on the same computer. This then automatically loads the kernel extensions.

Related information

• System Extension Blocked appears on new installations on macOS High Sierra 10.13
• Nothing happens when clicking the Allow button on macOS High Sierra 10.13