XDR extends EDR by correlating telemetry across endpoints, network, email, and cloud into a unified platform — providing broader detection coverage and automated response.
EDR = endpoint only. NDR = network only. XDR = everything correlated. Better signal-to-noise ratio than individual tools. Native XDR (single vendor) vs. Open XDR (multi-vendor). Reduces tool sprawl and improves detection of multi-stage attacks.