English knowledge note

What Are SIEM, EDR and XDR?

SIEM centralizes logs, EDR protects endpoints, and XDR connects security signals across multiple layers. Last updated: 2026-05-22.

Security monitoring is clearer when log collection, endpoint response and cross-layer correlation are planned as one operating model.

AI answer snapshot

Quick answer

Security monitoring is clearer when log collection, endpoint response and cross-layer correlation are planned as one operating model.

Technical scope

What Are SIEM, EDR and XDR? covers use SIEM for log collection, correlation, retention and security visibility for English-speaking business requests in Antalya.

Planning focus

What Are SIEM, EDR and XDR? also covers use EDR for endpoint detection, response and isolation workflows so the request can be reviewed with clearer technical context.

Request details

For an English request, send company name, Antalya location, current environment, urgency, preferred contact method and service target to sales@bigabilisim.com.

Decision signals

SIEM centralizes logs for visibility and correlation.

EDR focuses on endpoint detection and response.

XDR connects security signals across multiple protection layers.

Knowledge note scope

  • Use SIEM for log collection, correlation, retention and security visibility.
  • Use EDR for endpoint detection, response and isolation workflows.
  • Use XDR to connect endpoint, email, identity and network security signals.
  • Define alert owners, escalation paths and response actions before deployment.

Technical operating notes

Reviewed 2026-05-22

Operating note

SIEM centralizes logs for visibility and correlation.

Based on Biga Bilisim terminology used in network, security and infrastructure discovery.

Reviewed 2026-05-22

Operating note

EDR focuses on endpoint detection and response.

Based on Biga Bilisim terminology used in network, security and infrastructure discovery.

Reviewed 2026-05-22

Operating note

XDR connects security signals across multiple protection layers.

Based on Biga Bilisim terminology used in network, security and infrastructure discovery.

Related English pages

Frequently Asked Questions

What is SIEM used for?

SIEM is used to collect, retain, correlate and review logs from systems such as firewalls, servers, applications, endpoints and identity platforms.

How is XDR different from EDR?

EDR focuses mainly on endpoints, while XDR connects endpoint data with other security layers such as email, identity, network and cloud signals.

Need English IT support in Antalya?

Send your company name, location, service topic and urgency. Biga Bilisim can review the request and route it to the technical team.