Microsoft Defender for Business Data-backed Assessment (2026)
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- Starting price
- $3/user/mo
- Free trial
- Free trial
- Deployment
- Cloud
- Best for
- SMBs already on Microsoft 365 wanting bundled EDR
Our verdict
Microsoft Defender for Business earns 7.8/10 in our review, weighted from 4.4/5 (~300 G2 reviews) and its feature/pricing profile. Best for SMBs already on Microsoft 365 wanting bundled EDR. Starting price: $3/user/mo.
Backed by 4.4★ · 300 reviews on G2.
Pros & cons
✓ Pros
- Cheap if you have M365
- Solid detection
- Per-user (covers multiple devices)
✕ Cons
- Best within Microsoft ecosystem
- Licensing nuances
- Tuning needed
Key features
- EDR for SMB
- Next-gen AV
- Threat & vulnerability mgmt
- Auto-investigation
- M365 integration
How Microsoft Defender for Business compares
| Microsoft Defender for Business | SentinelOne Singularity | CrowdStrike Falcon | |
|---|---|---|---|
| Starting price | $3/user/mo | $69.99/endpoint/yr | $59.99/device/yr |
| Pricing model | per user | per endpoint | per endpoint |
| Free trial / tier | Free trial | Free trial | 15 days |
| Best for | SMBs already on Microsoft 365 wanting bundled EDR | Teams wanting autonomous AI-driven EDR/XDR | Organizations wanting best-in-class cloud-native EDR + threat intel |
| Deployment | Cloud | Cloud | Cloud |
| G2 rating | 4.4/5 (300) | 4.7/5 (2000) | 4.7/5 (290) |
| Capterra rating | — | — | — |
| Our score | 7.8 | 8.4 | 8.3 |
Try Microsoft Defender for Business →
Affiliate disclosure: Some links may be affiliate or partner links. If you sign up through one, we may earn a commission at no extra cost to you. This never changes our scores or rankings. Learn more.
Full review
Microsoft Defender for Business Review
Microsoft’s SMB-focused EDR bundle is a no-brainer if you already live in the Microsoft 365 world—and a harder sell if you don’t.
Verdict
Our score: 7.8/10 | G2: 4.4/5 (300 reviews)
Defender for Business is one of the best value plays in endpoint security for its target audience: small and mid-sized businesses already paying Microsoft. At $3/user/month (billed annually), it’s aggressively priced, and the per-user model means you cover multiple devices per person without stacking costs.
Pricing
| Tier | Price | Billing | Notes |
|---|---|---|---|
| Defender for Business | $3/user/mo | Annual | Standalone; included free in M365 Business Premium |
As of 2026-06. No free tier, but a free trial is available.
The per-user (not per-device) pricing is a genuine advantage—users with a laptop, desktop, and phone aren’t triple-billed. And if you’re already on M365 Business Premium, this is effectively bundled at no extra cost, which is where the real value lives.
Features
- EDR built for SMB scale
- Next-gen antivirus
- Threat & vulnerability management
- Automated investigation & remediation
- Deep M365 integration
The feature set is legitimately strong for the price—auto-investigation and TVM are things you’d normally pay a premium for elsewhere.
Pros & Cons
Pros
- Extremely cheap—especially if you already have M365
- Solid, well-regarded detection
- Per-user licensing covers multiple devices
Cons
- Value drops sharply outside the Microsoft ecosystem
- Licensing nuances (standalone vs. bundled) trip people up
- Requires tuning to get the most out of it
Bottom Line
If your shop runs on Microsoft 365, Defender for Business is close to a default recommendation—cheap, capable, and integrated. The catch is that its strength is the ecosystem: run a mixed or non-Microsoft environment and the calculus changes considerably. Budget time for tuning and clarify your licensing path (standalone vs. Business Premium) before you buy.
Best for: SMBs already on Microsoft 365 wanting bundled EDR.
Frequently asked questions
- Is Microsoft Defender for Business worth it?
- Microsoft Defender for Business earns 7.8/10 in our review, weighted from 4.4/5 (~300 G2 reviews) and its feature/pricing profile. Best for SMBs already on Microsoft 365 wanting bundled EDR. Starting price: $3/user/mo.
- What does Microsoft Defender for Business cost?
- From $3/user/mo — see the pricing page.
Based on aggregated third-party ratings (4.4/5 (~300 G2 reviews)) and Microsoft Defender for Business's published feature and pricing data. This page does not claim firsthand product use. See how we test.