Best MDR / XDR Software · 2026

Sophos MDR logoSophos MDR vs UnderDefense logoUnderDefense

Sophos MDR vs UnderDefense: on our data-weighted scoring, UnderDefense edges ahead (8.1 vs 7.7/10). Sophos MDR starts at Custom quote and is best for sophos customers wanting 24/7 managed detection; UnderDefense starts at $11/endpoint/mo and is best for teams that want an agentic AI SOC on top of the SIEM or XDR they already run. Choose UnderDefense for the stronger overall track record; consider Sophos MDR if its pricing model or fit matches your environment better. Side-by-side table below.

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Sophos MDR

7.7/10
MSP Compared score
Starting price
Custom quote
Reviews
4.7/5 (~300 G2 reviews)
Free trial
—
Deployment
Cloud
Best for
Sophos customers wanting 24/7 managed detection
Visit Sophos MDR →
Our pick

UnderDefense

8.1/10
MSP Compared score
Starting price
$11/endpoint/mo
Reviews
4.9/5 (~29 G2 reviews)
Free trial
14 days
Deployment
Cloud + on-prem
Best for
Teams that want an agentic AI SOC on top of the SIEM or XDR they already run
Visit UnderDefense →

Strengths at a glance

Six criteria, each scored 0–10 on the same scale from real review data, public pricing and feature coverage. See our methodology →

EditorialUser reviewsAdoptionAffordabilityFeature breadthEase of trial
Sophos MDRUnderDefense
CriterionSophos MDRUnderDefense
Editorial 7.7 8.1
User reviews 9.4 9.8
Adoption 6.6 3.9
Affordability 5.0 4.1
Feature breadth 4.0 6.0
Ease of trial 3.0 6.0

Sophos MDR vs UnderDefense: head-to-head

Sophos MDR vs UnderDefense — specs and pricing
Sophos MDRUnderDefense
Starting price Custom quote $11/endpoint/mo
Pricing model quote per endpoint
Free trial / tier — 14 days
Best for Sophos customers wanting 24/7 managed detection Teams that want an agentic AI SOC on top of the SIEM or XDR they already run
Deployment Cloud Cloud + on-prem
G2 rating 4.7/5 (300) 4.9/5 (29)
Capterra rating — —
Our score 7.7 8.1

Choose Sophos MDR if…

You need sophos customers wanting 24/7 managed detection.

✓ Pros

  • Integrates with existing tools
  • Large global SOC
  • Strong endpoint pairing

✕ Cons

  • Quote pricing
  • Best within Sophos Central
  • Tiered response

Sophos MDR pricing · review

Choose UnderDefense if…

You need teams that want an agentic ai soc on top of the siem or xdr they already run.

✓ Pros

  • Published per-endpoint floor (rare in this category)
  • Runs on the SIEM/XDR you already own
  • 14-day trial

✕ Cons

  • G2 volume still small vs Huntress or Arctic Wolf
  • Higher tiers are contact-sales
  • Annual contracts

UnderDefense pricing · review

In depth

Pricing: UnderDefense vs Sophos MDR

UnderDefense bills on a per endpoint model from $11/endpoint/mo (14 days trial), while Sophos MDR uses a quote model from Custom quote. Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.

Features & deployment

UnderDefense ships 6 headline capabilities (Agentic AI SOC overlay, Vendor-agnostic SIEM/XDR connectors, 24/7 concierge analysts, Co-managed SIEM) and deploys Cloud + on-prem. Sophos MDR ships 4 (24/7 MDR, Works with third-party telemetry, Threat hunting, Incident response), deploying Cloud.

Ratings & verdict

UnderDefense holds 4.9/5 (~29 G2 reviews); Sophos MDR holds 4.7/5 (~300 G2 reviews). On our data-weighted score, UnderDefense edges ahead (8.1 vs 7.7/10). Pick Sophos MDR instead when sophos customers wanting 24/7 managed detection. See UnderDefense alternatives or Sophos MDR alternatives.

Frequently asked questions

Sophos MDR vs UnderDefense: which is better?
Sophos MDR vs UnderDefense: on our data-weighted scoring, UnderDefense edges ahead (8.1 vs 7.7/10). Sophos MDR starts at Custom quote and is best for sophos customers wanting 24/7 managed detection; UnderDefense starts at $11/endpoint/mo and is best for teams that want an agentic AI SOC on top of the SIEM or XDR they already run.
Is Sophos MDR cheaper than UnderDefense?
Sophos MDR starts at Custom quote and UnderDefense starts at $11/endpoint/mo (see the pricing rows for models and limits).
Data as of November 1, 2026. Sources: sophos.com, underdefense.com. Figures are pulled from public vendor and security data and refreshed automatically.