Cybersecurity · head to head
Microsoft Defender vs Unit21
Microsoft Defender
Cybersecurity
Always-on protection for you and your family's data and devices
- From
- $12/month
- Rated
- -
Unit21
Cybersecurity
No-code fraud and AML risk operations platform for fintechs and neobanks
- From
- On request
- Rated
- -
The short version
- Each has a real cost: Microsoft Defender defender Suite requires existing Microsoft 365 E3 or equivalent base licensing; Unit21 it is built for fintech scale rather than card issuer scale, so organisations reaching very high transaction volumes generally re-evaluate against heavier platforms and face a migration.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Microsoft Defender and Unit21 actually diverge.
| Attribute | Microsoft Defender | Unit21 |
|---|---|---|
| Starting price | $12/month | On request |
| Pricing model | subscription | quote |
Identical on both: free tier (No), platforms (Web), user rating (Not yet rated), category (Cybersecurity).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Microsoft Defender
Nothing recorded that Unit21 does not also cover.
Only in Unit21
- No-code rule builder
- Case management
- SAR filing
- Backtesting
- Identity and device signals
- Data ingestion API
What people use each for
The jobs each tool is most often brought in to do.
Microsoft Defender
- Endpoint security and threat protectionnot Unit21
- Identity and access securitynot Unit21
- Email threat protectionnot Unit21
- SaaS application security monitoringnot Unit21
Unit21
- A neobank whose sponsor bank requires a documented monitoring programme before it will keep the BIN sponsorshipnot Microsoft Defender
- A crypto exchange needing SAR filing and case management without building an internal compliance engineering teamnot Microsoft Defender
- A payments startup where the fraud lead needs to ship a new rule the same day a new attack pattern appearsnot Microsoft Defender
- A lender consolidating fraud alerts from three point tools into one investigator queue with a single audit trailnot Microsoft Defender
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Microsoft Defender
- Defender Suite requires existing Microsoft 365 E3 or equivalent base licensing
- Some Defender products use pay-as-you-go pricing with variable costs
- Prices vary based on Microsoft agreements, requiring sales contact for custom quotes
Unit21
- It is built for fintech scale rather than card issuer scale, so organisations reaching very high transaction volumes generally re-evaluate against heavier platforms and face a migration.
- No-code rule authoring shifts power to the risk team, which is the point, but without governance it produces rule sprawl that nobody can explain to an examiner two years later.
- Detection quality depends on the signals you feed it, so a thin integration produces thin results and the platform cannot compensate with proprietary consortium data the way larger vendors do.
- Pricing is quoted by volume with an annual commitment, so a fintech whose growth stalls pays for headroom it did not use.
- SAR filing coverage is oriented to United States FinCEN reporting, so firms filing in the United Kingdom, European Union or Asia handle those submissions outside the tool.
Pricing, plan by plan
Microsoft Defender
$12/month- Microsoft Defender Suite$12/month
- Endpoint protection
- Identity threat detection
- Email security
- Microsoft 365 E5 with Defender$60/month
- Includes Defender Suite
- Microsoft Teams included
- Comprehensive security and compliance
- Microsoft Defender Vulnerability Management Add-on$2/month
- Vulnerability scanning and management
- One-month free trial available
- Annual commitment required
Unit21
On request- Unit21 Platform$undefined/year
- Priced by monitored volume and modules, annual contract
- Fraud, AML and case management packaged separately
- Implementation and historical data backfill quoted with the subscription
Which should you pick?
Choose Microsoft Defender if
Nothing in the data separates Microsoft Defender from Unit21 on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Microsoft Defender or Unit21 better?
- Neither clearly leads. Microsoft Defender starts at $12/month and Unit21 at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Microsoft Defender or Unit21?
- Microsoft Defender starts at $12/month and Unit21 at On request.
- Does Microsoft Defender or Unit21 run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
- What is Microsoft Defender best used for?
- Microsoft Defender is most often used for endpoint security and threat protection, identity and access security, email threat protection, saas application security monitoring. Of those, endpoint security and threat protection and identity and access security are not what Unit21 is typically brought in for.
- What can Microsoft Defender do that Unit21 cannot?
- Unit21 covers No-code rule builder, Case management, SAR filing, Backtesting.
Answered from the vendors’ own pages
Microsoft Defender: How much does Microsoft Defender Suite cost?
Microsoft Defender Suite costs $12/user/month (paid yearly), but requires existing Microsoft 365 E3 or equivalent base licensing. It includes endpoint protection, identity threat detection, email security, and SaaS application monitoring.
SourceUnit21: Do we need engineers to run it?
Only for the initial data integration. After that the design intent is that risk and compliance staff author and deploy rules themselves.
Microsoft Defender: What add-ons are available for Microsoft Defender?
Microsoft Defender Vulnerability Management Add-on costs $2/user/month with annual commitment and includes a one-month free trial. Additional pay-as-you-go products include External Attack Surface Management, Cloud Security Posture Management, and Sentinel.
SourceUnit21: Does it file SARs?
Yes, it generates and electronically files suspicious activity reports to FinCEN. Non-US regimes are not covered to the same depth.
Microsoft Defender: Is Defender included in Microsoft 365 E5?
Yes, Microsoft Defender Suite is included in Microsoft 365 E5 at $60/user/month (paid yearly with Teams). Prices may vary based on Microsoft agreements, requiring contact with Sales for customized quotes.
SourceUnit21: Can we test a rule before it goes live?
Yes. Backtesting against historical data to see projected alert volume is one of the more useful parts of the product, because alert volume is the real cost.
Related pages
More on Microsoft Defender
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