What is XDR?
XDR (Extended Detection and Response) is a security platform that combines telemetry from endpoint, network, identity, email, and cloud sources into a unified detection and investigation surface, typically delivered by a single vendor with proprietary detection content.
Updated 2026-05-19
XDR emerged in the late 2010s as a response to the multi-tool SOC problem. The pitch: instead of separate EDR, NDR, and email security tools, one vendor provides a consolidated platform with shared correlation and shared response. Major XDR products include Microsoft Defender XDR, Palo Alto Cortex XDR, CrowdStrike Falcon, SentinelOne Singularity, and Trend Vision One. XDR works best for organizations standardizing on a single security stack; it constrains teams that want best-of-breed at each layer.
How Command Zero handles XDR.
Command Zero is not an XDR. The platform does not produce detection content and does not own the data sources. Command Zero connects to the XDR (or to individual EDR, NDR, email, and identity tools when no XDR is in place) and runs investigations across whatever the customer has deployed. The Federated Data Model means Command Zero is XDR-agnostic, customers do not have to standardize on one vendor to benefit from AI-driven investigation.
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