Developer Tools · head to head
Cortex vs Microsoft Defender for Endpoint
Cortex
Developer Tools
Internal developer portal that scores service ownership and maturity rather than just cataloguing services
- From
- On request
- Free plan
- No
Microsoft Defender for Endpoint
Cybersecurity
Enterprise endpoint security built into Microsoft 365
- From
- On request
- Free plan
- No
The short version
- Each has a real cost: Cortex pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.; Microsoft Defender for Endpoint pricing not published on public websites; quote required from Microsoft sales
- They diverge on capability: Cortex covers Service catalogue, Microsoft Defender for Endpoint covers Threat & vulnerability management.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Cortex and Microsoft Defender for Endpoint actually diverge.
| Attribute | Cortex | Microsoft Defender for Endpoint |
|---|---|---|
| Platforms | Web, API | Windows, macOS, Linux, iOS, Android |
| Category | Developer Tools | Cybersecurity |
| Founded | Unknown | 1975 |
Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated).
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 Cortex
- Service catalogue
- Scorecards
- Initiatives
- Self-service templates
- Query language
- Eng intelligence
- Integrations layer
- On-call and ownership mapping
Only in Microsoft Defender for Endpoint
- Threat & vulnerability management
- Attack surface reduction
- Next-gen protection
- EDR
- Auto investigation
- Microsoft Threat Experts
- Threat analytics
- Secure score
What people use each for
The jobs each tool is most often brought in to do.
Cortex
- A platform team that needs to prove to leadership how far a Kubernetes or framework migration has actually progressed across hundreds of servicesnot Microsoft Defender for Endpoint
- An organisation where ownership of production services is genuinely unknown after reorganisations or acquisitionsnot Microsoft Defender for Endpoint
- Enforcing production readiness standards on new services at creation time rather than at incident reviewnot Microsoft Defender for Endpoint
- Replacing a self-hosted Backstage that is consuming a full-time engineer or two just to stay upgradednot Microsoft Defender for Endpoint
Microsoft Defender for Endpoint
- Enterprise endpoint security across Windows, macOS, Linux, Android, and iOS via Plans 1 or 2not Cortex
- Small and medium-sized businesses using Microsoft Defender for Business as alternativenot Cortex
- Organisations using Microsoft 365 E5 which includes Defender for Endpoint Plan 2not Cortex
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Cortex
- Pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
- The catalogue is only as accurate as the metadata you supply, so an organisation with inconsistent repository conventions spends its first quarter cleaning data before any scorecard means anything.
- Scorecards create political friction: publishing a per-team grade turns an engineering standard into a performance metric, and teams will game the rules rather than fix the underlying issue.
- It is closed source and hosted, so organisations with strict data residency or air-gap requirements have limited options compared with running Backstage themselves.
- Value scales with organisation size, so a company with fifty engineers and thirty services will find the catalogue tells them nothing they did not already know while still paying an enterprise contract.
Microsoft Defender for Endpoint
- Pricing not published on public websites; quote required from Microsoft sales
- Defender for Endpoint Plan 1 and Plan 2 do not include server licenses; additional licensing required for server protection
- Specific feature differences between Plan 1 and Plan 2 require consulting Microsoft documentation
Pricing, plan by plan
Cortex
On request- Cortex$undefined/year
- Service catalogue and ownership mapping
- Scorecards and initiatives
- Self-service templates
Microsoft Defender for Endpoint
On requestNo published plan breakdown. See the Microsoft Defender for Endpoint review.
Which should you pick?
Choose Cortex if
- You need service catalogue.
- You work on Web, API.
- You also want scorecards.
Choose Microsoft Defender for Endpoint if
- You need threat & vulnerability management.
- You work on Windows, macOS, Linux, iOS, Android.
- You also want attack surface reduction.
Questions people ask
- Is Cortex or Microsoft Defender for Endpoint better?
- Neither clearly leads. Cortex starts at On request and Microsoft Defender for Endpoint at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Cortex or Microsoft Defender for Endpoint?
- Cortex starts at On request and Microsoft Defender for Endpoint at On request.
- Does Cortex or Microsoft Defender for Endpoint run on more platforms?
- Cortex runs on Web, API. Microsoft Defender for Endpoint runs on Windows, macOS, Linux, iOS, Android.
- What is Cortex best used for?
- Cortex is most often used for a platform team that needs to prove to leadership how far a kubernetes or framework migration has actually progressed across hundreds of services, an organisation where ownership of production services is genuinely unknown after reorganisations or acquisitions, enforcing production readiness standards on new services at creation time rather than at incident review, replacing a self-hosted backstage that is consuming a full-time engineer or two just to stay upgraded. Of those, a platform team that needs to prove to leadership how far a kubernetes or framework migration has actually progressed across hundreds of services and an organisation where ownership of production services is genuinely unknown after reorganisations or acquisitions are not what Microsoft Defender for Endpoint is typically brought in for.
- What can Cortex do that Microsoft Defender for Endpoint cannot?
- Cortex covers Service catalogue, Scorecards, Initiatives, Self-service templates. Microsoft Defender for Endpoint covers Threat & vulnerability management, Attack surface reduction, Next-gen protection, EDR.
Answered from the vendors’ own pages
Cortex: How is Cortex different from Backstage?
Backstage is an open source framework you build and staff. Cortex is a hosted product with scorecards and initiatives out of the box and no platform team required to keep it running.
Microsoft Defender for Endpoint: How is Microsoft Defender for Endpoint priced?
Defender for Endpoint is bundled into Microsoft 365 enterprise subscriptions. Plan 1 is included in Microsoft 365 E3, and Plan 2 is included in Microsoft 365 E5. Individual pricing is not published separately.
SourceCortex: Is pricing published?
No. Cortex requires a sales conversation and prepares a custom proposal.
Microsoft Defender for Endpoint: Does Microsoft Defender for Endpoint offer a trial?
Yes. A free trial is available for prospective customers to test the product before committing to a subscription.
SourceCortex: Can it self-host?
It is offered as a hosted product; on-premise arrangements are handled through sales rather than published.
Microsoft Defender for Endpoint: What is the difference between Plan 1 and Plan 2?
Plan 1 (in E3) includes unified security tools, device controls, network protection, firewall, web/URL controls, APIs, SIEM connectors, and app controls. Plan 2 (in E5) adds endpoint detection and response, deception techniques, automatic attack disruption, exposure management, and threat intelligence.
SourceCortex: What is the main adoption risk?
Bad or missing service metadata. The catalogue and every scorecard on top of it inherit whatever quality your repositories already have.
Related pages
More on Microsoft Defender for Endpoint
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