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Security Operations · Intermediate

Microsoft Defender XDR

Microsoft's extended detection and response suite, formerly Microsoft 365 Defender, unifying endpoint, identity, email and cloud app protection.

Definition

Defender XDR correlates signals from Defender for Endpoint, Defender for Office 365, Defender for Identity and Defender for Cloud Apps into incidents with automated investigation and response. Advanced hunting uses KQL across these data sources. It is managed in the unified Microsoft Defender portal alongside Sentinel.

Example

An incident linking a phishing email in Defender for Office 365 to a malicious process detected by Defender for Endpoint.

Exam tip

Renamed from Microsoft 365 Defender in 2023; know its component products.

Related terms