Cybersecurity · head to head
Chainguard vs Microsoft Defender
Chainguard
Cybersecurity
Secure-by-default open source software with hardened container images and libraries
- From
- Free
- Rated
- -
Microsoft Defender
Cybersecurity
Always-on protection for you and your family's data and devices
- From
- $12/month
- Rated
- -
The short version
- Only Chainguard has a free tier, so it costs nothing to try first.
- Each has a real cost: Chainguard containers Catalog at 19,000 USD/year expensive for teams under 10 people; Microsoft Defender defender Suite requires existing Microsoft 365 E3 or equivalent base licensing
- Prices and features above were last checked on 29 August 2026.
Where they differ
Only the attributes on which Chainguard and Microsoft Defender actually diverge.
| Attribute | Chainguard | Microsoft Defender |
|---|---|---|
| Starting price | Free | $12/month |
| Pricing model | Licensing by artifact type and team size | subscription |
| Free tier | Yes | No |
| Platforms | Cloud, Container, VM | Web |
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 Chainguard
- Hardened container images
- CVE remediation SLA
- SLSA L2/L3 builds
- Sigstore signatures
- SBOM generation
- Language libraries
- VM images
- Artifact scanning
Only in Microsoft Defender
Nothing recorded that Chainguard does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
Chainguard
- Deploying hardened container images with minimal attack surfacenot Microsoft Defender
- Meeting supply chain security requirements for regulated industriesnot Microsoft Defender
- Reducing CVE exposure with contractual remediation guaranteesnot Microsoft Defender
- Building secure language packages with automatic backportsnot Microsoft Defender
- Verifying artifact provenance with Sigstore signaturesnot Microsoft Defender
Microsoft Defender
- Endpoint security and threat protectionnot Chainguard
- Identity and access securitynot Chainguard
- Email threat protectionnot Chainguard
- SaaS application security monitoringnot Chainguard
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Chainguard
- Containers Catalog at 19,000 USD/year expensive for teams under 10 people
- Per-image pricing for containers requires custom quotes with no transparency
- Free tier limited to 5 container images for testing
- Libraries pricing by ecosystem and developer count lacks transparent per-developer cost
- VM image catalog pricing opacity makes cost estimation difficult
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
Pricing, plan by plan
Chainguard
Free- Free TierFree
- Five container images to test and deploy
- Containers Per-Image$undefined/custom
- Licensed by quantity and type
- Base images, application images, AI/ML images, FIPS variants
- Custom pricing per image
- Containers Catalog$19000/year
- For 10-person engineering teams
- 2,000+ container images
- Contractual CVE remediation SLAs
- Libraries Licensing$undefined/custom
- Licensed by ecosystem (Python, Java, JavaScript)
- Licensed by developer count
- Unlimited pulls with no metering
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
Which should you pick?
Choose Chainguard if
- You need hardened container images.
- You want to start without paying.
- You work on Cloud, Container, VM.
- You also want cve remediation sla.
Choose Microsoft Defender if
Nothing in the data separates Microsoft Defender from Chainguard on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Chainguard or Microsoft Defender better?
- Neither clearly leads. Chainguard starts at Free and Microsoft Defender at $12/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Chainguard or Microsoft Defender?
- Chainguard has a free tier; the other does not. Paid plans start at Free for Chainguard and $12/month for Microsoft Defender.
- Does Chainguard or Microsoft Defender run on more platforms?
- Chainguard runs on Cloud, Container, VM. Microsoft Defender runs on Web.
- Can I use Chainguard for free?
- Yes. Chainguard has a free tier, so you can try it without paying. Microsoft Defender starts at $12/month.
- What is Chainguard best used for?
- Chainguard is most often used for deploying hardened container images with minimal attack surface, meeting supply chain security requirements for regulated industries, reducing cve exposure with contractual remediation guarantees, building secure language packages with automatic backports. Of those, deploying hardened container images with minimal attack surface and meeting supply chain security requirements for regulated industries are not what Microsoft Defender is typically brought in for.
- What can Chainguard do that Microsoft Defender cannot?
- Chainguard covers Hardened container images, CVE remediation SLA, SLSA L2/L3 builds, Sigstore signatures.
Answered from the vendors’ own pages
Chainguard: How much is the Chainguard Containers Catalog?
The Containers Catalog is 19,000 USD per year for 10-person engineering teams, providing access to 2,000+ hardened container images.
SourceMicrosoft 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.
SourceChainguard: What SLAs does Chainguard offer?
Chainguard provides contractual CVE remediation SLAs: 7 days for critical vulnerabilities, 14 days for high/medium/low severity, all with priority support.
SourceMicrosoft 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.
SourceChainguard: Can I try Chainguard before purchasing?
Yes. The free tier includes five container images for testing and deployment, allowing hands-on evaluation.
SourceMicrosoft 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.
SourceRelated pages
More on Microsoft Defender
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