The Azure Alert Suppression Rule Created or Modified rule is designed to detect the creation or modification of alert suppression rules within Azure Security Center. These rules can be used to filter out specific security alerts, which is useful for reducing false positives; however, this functionality may also be exploited by malicious actors to suppress alerts pertaining to their nefarious activities. Therefore, monitoring the creation or modification of these rules is crucial. The detection mechanism utilizes Azure Monitor Activity logs to track operations involving alert suppression. It is essential to investigate recent suppression rules to ascertain whether they might be hiding significant security incidents, especially if they represent a pattern inconsistent with normal operational behavior.