The rule checks for the status of the automatic software update feature on MacOS systems using OSQuery. It aims to ensure that the feature is enabled, enhancing the security posture by ensuring that the system receives critical software updates automatically. The detection specifies that when the 'AutomaticCheckEnabled' key in the 'com.apple.SoftwareUpdate' domain is set to 'false', it indicates that the auto updates are disabled, which is a violation of recommended security practices. The rule operates on a differential log type to reduce noise and only triggers if there are changes in the status of the auto update feature. Its severity is rated as medium, highlighting the importance of keeping systems updated to fend off vulnerabilities and exploits. For remediation, the suggested action is to enable a host's automatic updates, ensuring that the system benefits from the latest security patches and improvements.