Advanced Threat Intelligence & Hunting with Microsoft Defender and Sentinel

Threat intelligence shouldn’t live in spreadsheets. It should live in your detections.

Microsoft Sentinel’s integration with Microsoft Defender Threat Intelligence enables security teams to move beyond reactive alerts and into intelligence-led threat hunting. By correlating high-fidelity Microsoft-curated indicators with real telemetry—endpoint, identity, and network data—you can surface adversary activity earlier and with higher confidence.

In this article, I walk through:

Enabling Defender TI in Sentinel

Understanding the indicator schema that actually matters

Production-ready KQL hunting patterns

Confidence- and expiration-aware detection logic

Deployable analytics rules ready for real SOCs

Threat intelligence gives you the map.
Sentinel gives you the flashlight.
Hunting is knowing where—and when—to look.