Microsoft 365 Copilot SearchLeak Exploitation
This rule detects potential data exfiltration attempts or sensitive information disclosure through Microsoft Copilot Enterprise Search. It specifically looks for 'URLClick' actions from 'Microsoft Copilot Enterprise Search' where the raw event data contains a 'q=' parameter (indicating a query) and also contains keywords like 'extract', 'embed', or 'img'. This combination suggests that a user might be attempting to extract or embed content, potentially sensitive, via a Copilot search query, which could lead to data leakage.
Microsoft Sentinel (KQL)
