XDR

What an XDR is

An XDR is the next step after EDR. It extends the deep endpoint visibility provided by an EDR to other security-relevant data sources — cloud (AWS, Azure, GCP), identity (Active Directory, Entra ID, Okta), network flows and email security gateways — and correlates events across these domains.

The main benefit is the ability to follow an attacker who moves between vectors: compromised credentials → email exfiltration → cloud privilege escalation → lateral movement to an on-prem server. An EDR alone would only see the last hop; an XDR sees the whole chain.

XDR vs SIEM

A SIEM collects logs from everywhere but stays generic; alerts are noisy without significant tuning. An XDR is a product opinion: it natively correlates security telemetry and ships with high-fidelity detections out of the box. A SIEM is broader, an XDR is sharper.

Many organisations run both: XDR for security operations day-to-day, SIEM for compliance retention and ad-hoc forensic searches.

XDR at Hexceos

Hexceos Sentinel is an XDR from version 1.2 onwards. It is operated 24/7 by our SOC and deployed across endpoints, cloud and identity in a single agent and console.