This detection rule, referred to as 'GCP Logging Settings Modified', is primarily designed to monitor changes made to Google Cloud Platform (GCP) logging settings by evaluating GCP audit logs. The rule checks for specific operations related to logging sinks, specifically the modification of logging sink settings. By inspecting log entries for actions that involve the updating or modifying of logging configurations, this rule helps in identifying potential unauthorized changes that could affect logging integrity and compliance. The rule comprises various tests to confirm if changes are legitimate or suspicious based on the log results. If changes that deviate from expected behavior are detected, including modifications to logging sinks, an alert will be generated.