MDR does not replace EDR
The MDR SOC needs EDR telemetry to investigate. EDR provides endpoint visibility (process execution, file changes, network connections); MDR provides the SOC analysts who investigate alerts. Most MDR vendors either include their own EDR platform (Sophos, CrowdStrike) or integrate with best-of-breed EDR like Microsoft Defender for Endpoint, SentinelOne, or Carbon Black. The combination is what produces meaningful threat detection and response.
| EDR Platform | Common MDR Pairings |
|---|
| Microsoft Defender for Endpoint | Arctic Wolf, eSentire, Expel, Rapid7 |
| CrowdStrike Falcon Insight | CrowdStrike Falcon Complete, Arctic Wolf, eSentire |
| SentinelOne Singularity | Arctic Wolf, Expel, eSentire |
| Sophos Intercept X | Sophos MDR (native) |
| Carbon Black | Rapid7, Arctic Wolf |
Source: Vendor integration partner directories, 2026.
When to choose MDR
Choose MDR when you need 24/7 threat detection but cannot build or staff an in-house SOC. Most SMBs and mid-market organizations lack the budget to maintain a 24/7 SOC with named analysts, threat intelligence, and incident response coordination. MDR fills that gap at a fraction of the cost of building in-house. For organizations with existing SOC capabilities, MDR adds value for after-hours coverage, surge support during major incidents, and specialized capabilities like dark web monitoring.
Internal links
See related security operations guides: Ransomware negotiation cost, Cyber insurance application checklist, and Cyber insurance cost.
FAQs
See FAQ section above for MDR pricing tiers, top vendor comparison, EDR-MDR relationship, MSSP distinction, and in-house SOC replacement scenarios.
MDR coverage scope comparison
MDR coverage scope varies significantly by vendor and tier. Understand what is included before selecting a vendor.
| Coverage Area | Arctic Wolf | eSentire | Sophos | Rapid7 | Expel | CrowdStrike |
|---|
| Endpoint monitoring | Yes | Yes | Yes (native) | Yes | Yes | Yes (native) |
| Network monitoring | Yes | Yes | Yes | Yes | Yes | Yes |
| Cloud workload monitoring | Yes | Yes | Yes | Yes | Yes | Yes |
| Identity monitoring | Yes | Yes | Yes | Yes | Yes | Yes |
| Email monitoring | Yes | Yes | Yes (native) | Yes | Yes | Yes |
| 24/7 SOC | Yes | Yes | Yes | Yes | Yes | Yes |
| Threat hunting | Yes | Yes | Yes | Yes | Yes | Yes |
| Incident response coordination | Yes | Yes | Yes | Yes | Yes | Yes |
| Dark web monitoring | Yes | Yes | Yes | Yes | Yes | Yes |
| Vulnerability management | Add-on | Add-on | Add-on | Yes (InsightVM) | Add-on | Yes (Spotlight) |
Source: Vendor product documentation, 2026.
FAQ expansion
Q: Does MDR include incident response retainer? Most MDR vendors include incident response coordination but not full retainer for major incidents. Major incidents typically require separate engagement with IR firms (Mandiant, Unit 42, CrowdStrike Services) or ransomware negotiators (Coveware, GroupSense). Some MDR vendors offer IR retainer add-ons.
Q: Can MDR replace my in-house SOC analyst? For SMBs with no in-house SOC, MDR is the primary answer. For mid-market and enterprise with in-house SOC, MDR augments rather than replaces. MDR handles alert triage, threat hunting, and after-hours coverage; in-house SOC handles strategic security initiatives, policy, and major incident command.
Q: How long does MDR onboarding take? Most MDR vendors onboard new customers in 1-4 weeks. Expel is known for fast onboarding (hours to days). Arctic Wolf typically takes 2-4 weeks for full deployment including Concierge Security Team setup.
Fazlur Rahman
