Who this page is for
Executives, IT and security leaders, procurement and auditors evaluating external detection models.
What is MDR?
Managed Detection and Response covers telemetry, analysis, triage and usually defined response actions - typically built on EDR and further sources, operated by an external provider.
Difference from SOC, managed SOC and MSSP
Internal SOC: fully in-house.
Managed SOC: outsourced operations, often on the customer platform.
MSSP: classic security service provider, often with broader portfolio, sometimes less depth in detection.
MDR: focused on detection and response, often on the provider's platform with defined response rights.
Where MDR fits
Organisations without 24/7 shifts, with constrained security staffing or unclear escalation. Also a useful complement to a small internal team.
What to look for in a provider
Telemetry sources, response times, active response rights, transparency on false positive rates, reporting, incident communication, regulatory aspects such as data residency, and the relationship with your own incident response.
Limits and responsibilities
MDR does not replace internal security work. Asset inventory, hygiene, patch management and identity remain the organisation's responsibility. Without clear escalation paths even the best MDR is slowed down.
Checklist
- Expected telemetry sources defined
- Response rights and escalation in writing
- Data location and regulatory aspects reviewed
- Reporting and incident communication rehearsed
- Integration with own incident response clarified
- Exit strategy considered
Frequently asked questions
+How is MDR different from MSSP?
MDR is more narrowly focused on detection and response, often deeper in telemetry and reaction. MSSPs usually offer a broader, shallower portfolio.
+Can MDR replace an internal SOC?
For many small and mid-sized organisations, yes. Larger organisations often combine internal staff with an external service.
Related topics
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XDR combines telemetry from multiple sources to detect threats faster and with better context. This page positions the term beyond marketing.
A SIEM aggregates log and telemetry data, correlates it and provides the foundation for detection and incident response. This page covers function, important data sources and common mistakes.
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