Extended Detection and Response

Definitions

1. Extended Detection and Response is a security operations capability that correlates endpoint, identity, email, cloud, and network telemetry for response. Security teams use it to enforce trust, reduce exposure, improve detection, or standardize secure operations in production environments. Its value depends on correct configuration, lifecycle management, and surrounding controls, because weak defaults, poor integration, or missing visibility can create gaps that attackers exploit.

   In plain English: Extended Detection and Response is a security concept or control that helps organizations protect systems, manage trust, and notice suspicious behavior before damage spreads.

   Example: "After the review, the security team rolled out Extended Detection and Response in the affected environment, documented the operating procedure, and verified through logs and test cases that the control reduced exposure without breaking normal administrative or user workflows."

Related Terms

• EDR
• Endpoint Detection and Response
• Intrusion Detection System
• Kill Switch
• Log Correlation
• Network Detection and Response
• NDR
• SOAR
• XDR
• Active Defense
• Detection Engineering
• Managed Security
• Managed Security Service