XDR vs EDR vs MDR: Full Comparison
Updated 26 March 2026
Three acronyms, three fundamentally different approaches to detection and response. XDR is the broadest platform. EDR is the narrowest tool. MDR is a service wrapper around either. Here is how they compare across every relevant dimension.
| Factor | EDR | MDR | XDR |
|---|---|---|---|
| Full name | Endpoint Detection and Response | Managed Detection and Response | Extended Detection and Response |
| What it covers | Endpoints only (laptops, servers, desktops) | Endpoints + whatever data sources are contracted | Endpoints + cloud + email + network + identity |
| Type of solution | Software tool (self-managed) | Managed service (people + tools) | Unified platform (software + data correlation) |
| Who manages it | Your in-house security team | Provider's SOC analysts | Your team or provider (open to both models) |
| Telemetry sources | Endpoint process, file, network, registry | Depends on contracted data sources | All sources natively unified in single data lake |
| Detection correlation | Endpoint-level only | Cross-source if MDR includes multiple feeds | Native cross-source correlation - cloud + endpoint + email |
| MITRE ATT&CK coverage | Initial access through impact on endpoints | Broader if multi-source | Full chain including cloud and identity lateral movement |
| Requires in-house analyst | Yes - alerts go to your team | No - provider triages | Typically yes (or add MDR layer on top) |
| Alert fatigue risk | High without good tuning | Low - provider filters | Medium - better correlation reduces noise vs EDR |
| Cost per endpoint/month | $3 to $15 | $15 to $50 (includes labour) | $6 to $18 (software only) |
| Best deployment size | Any size with analyst capacity | Any size without analyst capacity | 250+ endpoints with multi-cloud footprint |
| Replaces SIEM | No | Partially (via provider's SIEM) | Often yes for mid-market |
Decision guide: which one should you buy?
Buy EDR if...
- ✓You have in-house security analysts
- ✓Your threat surface is mostly endpoints
- ✓You already have a SIEM handling correlation
- ✓Budget is tight and you can cover alerts manually
- ✓You want to control all detection logic yourself
Buy MDR if...
- ✓You have no dedicated security team
- ✓You need 24x7 coverage without hiring shift workers
- ✓Your insurer or compliance framework requires managed monitoring
- ✓You want documented incident response reports
- ✓Speed of response matters more than control of tooling
Buy XDR if...
- ✓You have cloud workloads, email threats, and endpoint threats to correlate
- ✓You are running 4+ separate security tools and want to consolidate
- ✓You want to replace a SIEM with a purpose-built detection platform
- ✓Your team needs cross-source attack timelines automatically
- ✓You are planning MDR later and want the right underlying platform
Can you combine XDR with MDR?
Yes, and this is the most common enterprise pattern. You license XDR software for its cross-source correlation and unified platform capabilities. You then layer an MDR service on top of the XDR platform so analysts monitor and respond 24x7. This combination gives you the broadest detection coverage (XDR) with the fastest response time (MDR). The total cost is XDR software at $10 to $18 per endpoint per month plus MDR management fees at $10 to $25 per endpoint per month, putting total spend at $20 to $43 per endpoint per month. This is comparable to top-tier standalone MDR pricing.