Microsoft Sentinel high experimental kql

GTI - Data Leak Alert Detected

Triggers an incident when a GTI Relevance System Alert of type data_leak is ingested. Data Leak alerts indicate that sensitive organisational data (credentials, PII, intellectual property, source code, databases, etc.) has been found exposed on the dark web, paste sites, or underground forums and matches your organisation profile. Each unique Alert ID is grouped into a single incident.

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Detection Logic

GTIRelevanceSystemAlerts
| where DetailType == "data_leak"
| project
    TimeGenerated,
    AlertId,
    AlertName          = DisplayName,
    AlertState         = State,
    LeakSeverity       = DataLeakSeverity,
    DiscoveryDocuments = DataLeakDiscoveryDocumentIds,
    PriorityLevel,
    PriorityReasoning,
    SeverityLevel,
    SeverityConfidence,
    SeverityReasoning,
    RelevanceLevel,
    RelevanceConfidence,
    RelevanceReasoning,
    FindingCount,
    AiSummary,
    CommonThemes       = RelevanceEvidenceCommonThemes,
    DistinctThemes     = RelevanceEvidenceDistinctThemes,
    AuditCreateTime,
    AuditUpdateTime

Field Validations

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