Information
The macOS system must enforce installation of XProtect Remediator and Gatekeeper updates automatically.
GROUP ID: V-259576RULE ID: SV-259576r991589
Software Update must be configured to update XProtect Remediator and Gatekeeper automatically.
This setting enforces definition updates for XProtect Remediator and Gatekeeper; with this setting in place, new malware and adware that Apple has added to the list of malware or untrusted software will not execute. These updates do not require the computer to be restarted.
https://support.apple.com/en-us/HT207005
Note: Software update will automatically update XProtect Remediator and Gatekeeper by default in the macOS.
Solution
Configure the macOS system to enforce installation of XProtect Remediator and Gatekeeper updates automatically by installing the "com.apple.SoftwareUpdate" configuration profile.