What is EDR?
EDR (Endpoint Detection and Response) is a category of security software that monitors endpoint devices, laptops, desktops, servers, for malicious activity and provides investigation and response capabilities when threats are detected.
Updated 2026-05-19
EDR products record granular endpoint telemetry (process execution, file changes, network connections, registry changes) and use that data to detect known and novel threats. The major EDR vendors are CrowdStrike Falcon, Microsoft Defender for Endpoint, SentinelOne, Palo Alto Cortex XDR, and Sophos. EDR has become near-universal in enterprise security; investigations frequently start or end with EDR telemetry.
How Command Zero handles EDR.
Command Zero connects to CrowdStrike, SentinelOne, Microsoft Defender, and other EDR platforms through the Federated Data Model. Investigations query EDR data directly via API, no ingestion pipeline, no data duplication. When an alert involves endpoint activity, Command Zero agents ask the relevant expert-authored questions of the EDR data and correlate findings with identity, email, and cloud signals. The investigation runs across data sources, not on top of any one of them.
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