Cybersecurity · head to head
Microsoft Sentinel vs TrustArc
TrustArc
Cybersecurity
Privacy management platform with regulatory research and the TRUSTe certification programme
- From
- On request
- Rated
- -
The short version
- Only Microsoft Sentinel has a free tier, so it costs nothing to try first.
- Each has a real cost: Microsoft Sentinel billing is driven by the volume of log data ingested per day, so cost scales with log noise rather than with users or protected assets; 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.
- They diverge on capability: Microsoft Sentinel covers AI-powered analytics, TrustArc covers Nymity Research.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Microsoft Sentinel and TrustArc actually diverge.
| Attribute | Microsoft Sentinel | TrustArc |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | usage-based | quote |
| Free tier | Yes | No |
| Platforms | Web, Api | Web |
| Founded | 1975 | Unknown |
Identical on both: 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 Sentinel
- AI-powered analytics
- Fusion detection
- UEBA
- Automated response playbooks
- Threat intelligence
- Hunting queries
- Workbooks
- Incident management
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 Sentinel
- Cloud-based security information and event management (SIEM)not TrustArc
- Extended detection and response (XDR) across enterprise infrastructurenot TrustArc
- Data ingestion and long-term security analyticsnot 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 Sentinel
- A multinational privacy team that needs a maintained answer to what a given jurisdiction requires without retaining outside counsel for every questionnot Microsoft Sentinel
- An organisation running DPIAs at volume that wants templates tied to a maintained regulatory library rather than to a consultant word documentnot Microsoft Sentinel
- A privacy programme being audited that needs documented maturity benchmarking against a recognised framework of programme activitiesnot Microsoft Sentinel
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Microsoft Sentinel
- Billing is driven by the volume of log data ingested per day, so cost scales with log noise rather than with users or protected assets
- Commitment tier discounts require reserving daily ingestion capacity in advance, and a tier cannot be downgraded until 31 days have passed
- Commitment tiers start at 100 GB per day, above what smaller estates ingest
- Charges for Log Analytics, Logic Apps and Machine Learning are billed separately on top of Sentinel itself
- The free allowance is only up to 5 MB per user per day for selected Microsoft 365 security logs
- Promotional commitment pricing is time limited and locks in only until a stated end date
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 Sentinel
Free- Pay-As-You-Go$2.46/day
- Per GB ingested
- 90-day retention
- First 31 days free for new workspaces
- Commitment TiersFree
- 100GB to 50TB tiers
- Up to 65% discount
- Predictable billing
- Microsoft 365 E5Free
- Free data ingestion for M365 logs
- Bundled with E5 license
TrustArc
On request- TrustArc Privacy Platform$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 Sentinel if
- You need ai-powered analytics.
- You want to start without paying.
- You work on Web, Api.
- You also want fusion detection.
Questions people ask
- Is Microsoft Sentinel or TrustArc better?
- Neither clearly leads. Microsoft Sentinel starts at Free and TrustArc at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Microsoft Sentinel or TrustArc?
- Microsoft Sentinel has a free tier; the other does not. Paid plans start at Free for Microsoft Sentinel and On request for TrustArc.
- Does Microsoft Sentinel or TrustArc run on more platforms?
- Microsoft Sentinel runs on Web, Api. TrustArc runs on Web.
- Can I use Microsoft Sentinel for free?
- Yes. Microsoft Sentinel has a free tier, so you can try it without paying. TrustArc starts at On request.
- What is Microsoft Sentinel best used for?
- Microsoft Sentinel is most often used for cloud-based security information and event management (siem), extended detection and response (xdr) across enterprise infrastructure, data ingestion and long-term security analytics. Of those, cloud-based security information and event management (siem) and extended detection and response (xdr) across enterprise infrastructure are not what TrustArc is typically brought in for.
- What can Microsoft Sentinel do that TrustArc cannot?
- Microsoft Sentinel covers AI-powered analytics, Fusion detection, UEBA, Automated response playbooks. TrustArc covers Nymity Research, TRUSTe certification, Consent and preference management, Privacy assessments.
Answered from the vendors’ own pages
Microsoft Sentinel: How is Microsoft Sentinel pricing calculated?
Microsoft Sentinel uses a pay-as-you-go usage-based model where you pay only for data ingested, stored, and consumed. Flexible commitment tiers are available to reduce total cost of ownership, with specific rates not published on the public pricing page. Source: https://www.microsoft.com/security/business/siem-and-xdr/microsoft-sentinel/
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 Sentinel: Does Microsoft Sentinel require an Azure subscription?
Yes, Microsoft Sentinel requires a Microsoft Azure subscription to operate. Pricing is handled through Azure and varies based on data consumption and the commitment tier you select. Source: https://www.microsoft.com/security/business/siem-and-xdr/microsoft-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.
TrustArc: 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
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- TrustArc vs Veracode
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