Cybersecurity · head to head
Microsoft Defender vs TrustArc
Microsoft Defender
Cybersecurity
Always-on protection for you and your family's data and devices
- From
- $12/month
- Rated
- -
TrustArc
Cybersecurity
Privacy management platform with regulatory research and the TRUSTe certification programme
- 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; TrustArc the software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Microsoft Defender and TrustArc actually diverge.
| Attribute | Microsoft Defender | TrustArc |
|---|---|---|
| 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 TrustArc does not also cover.
Only in TrustArc
- Nymity Research
- TRUSTe certification
- Consent and preference management
- Privacy assessments
- Data inventory and mapping
- Individual rights requests
- Cookie consent manager
- Privacy programme benchmarking
What people use each for
The jobs each tool is most often brought in to do.
Microsoft Defender
- Endpoint security and threat protectionnot TrustArc
- Identity and access securitynot TrustArc
- Email threat protectionnot TrustArc
- SaaS application security monitoringnot TrustArc
TrustArc
- A consumer brand that needs an independent privacy seal on its website because enterprise customers or app stores ask for third-party verificationnot Microsoft Defender
- A multinational privacy team that needs a maintained answer to what a given jurisdiction requires without retaining outside counsel for every questionnot Microsoft Defender
- An organisation running DPIAs at volume that wants templates tied to a maintained regulatory library rather than to a consultant word documentnot Microsoft Defender
- A privacy programme being audited that needs documented maturity benchmarking against a recognised framework of programme activitiesnot 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
TrustArc
- The software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
- The integration catalogue is smaller than the market leader, which means more of the data inventory is maintained by hand and drifts out of date between reviews.
- Certification services are sold separately from the platform subscription, so the seal that is often the reason for choosing TrustArc is an extra line item and an extra annual renewal.
- Reported contract values vary enormously by module mix and organisation size, and the absence of published pricing means smaller buyers have no anchor and routinely discover the entry price is higher than expected.
- TrustArc stays inside privacy, so organisations that later want third-party risk, security compliance or ethics reporting on the same platform will be running a second vendor anyway.
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$2/month
- Vulnerability scanning and management
- One-month free trial available
- Annual commitment required
TrustArc
On request- TrustArc Privacy Platform$undefined/year
- Quoted by module, entity count and data volume
- TRUSTe certification and assessment services priced separately from platform subscription
- Nymity Research licensed as a separate module
Which should you pick?
Choose Microsoft Defender if
Nothing in the data separates Microsoft Defender from TrustArc on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Microsoft Defender or TrustArc better?
- Neither clearly leads. Microsoft Defender starts at $12/month and TrustArc at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Microsoft Defender or TrustArc?
- Microsoft Defender starts at $12/month and TrustArc at On request.
- Does Microsoft Defender or TrustArc 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 TrustArc is typically brought in for.
- What can Microsoft Defender do that TrustArc cannot?
- TrustArc covers Nymity Research, TRUSTe certification, Consent and preference management, Privacy assessments.
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.
SourceTrustArc: What does TrustArc have that OneTrust does not?
Nymity Research, a maintained regulatory intelligence library acquired in 2019, and the TRUSTe third-party certification and seal programme.
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.
SourceTrustArc: How much does TrustArc cost?
Not published. Reported enterprise agreements range widely depending on modules and organisation size, and certification services are quoted on top of the platform subscription.
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.
SourceTrustArc: Is TRUSTe the same company?
Yes. TrustArc is the renamed TRUSTe business and still operates the TRUSTe certification programme as a subsidiary.
TrustArc: Does it handle cookie consent for Europe?
Yes, it includes a consent manager with scanning and banner delivery, though pure-play consent vendors are cheaper if that is all you need.
Related pages
More on Microsoft Defender
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