XDR — Extended Detection and Response
Definition
An evolution of EDR that correlates security telemetry across endpoints, network, email, identity, and cloud workloads into a single platform.
Context & Usage
XDR provides unified threat detection across the entire attack surface. Major XDR platforms: Palo Alto Cortex XDR, CrowdStrike Falcon (XDR-extended), Microsoft Defender XDR, SentinelOne Singularity XDR. Reduces alert fatigue vs separate EDR/NDR/MDR products.
Examples
- Palo Alto Cortex XDR (endpoint + network + cloud)
- Microsoft Defender XDR
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