The 'Notion Sharing Settings Updated' rule is designed to monitor changes in sharing settings within Notion workspaces. Specifically, it detects when a user enables sharing for either a Workspace or Teamspace, which can indicate potential data exfiltration risks. The rule is triggered when the corresponding event in the audit logs is logged, indicating a state change to 'enabled'. The severity level for this detection is classified as medium due to the implications of unauthorized sharing of sensitive information. The dedicated runbook advises security personnel to follow up with the Notion user to determine if these changes were performed for legitimate business purposes. It also establishes a deduplication period of 60 minutes, ensuring that multiple instances of the same event do not flood the logs, thus streamlining the incident response process. This rule is proactive in protecting organizational data from potential breaches by alerting on specific user actions that may lead to unintended information exposure.