# IriusRisk Threat Modeling Tool vs MoreSec STAC: side-by-side comparison (2026)

[IriusRisk Threat Modeling Tool](https://cybersectools.com/tools/iriusrisk-threat-modeling-tool) is a free [threat modeling](https://cybersectools.com/categories/threat-modeling) solution by [IriusRisk](https://cybersectools.com/companies/iriusrisk). [MoreSec STAC](https://cybersectools.com/tools/moresec-stac) is a commercial [threat modeling](https://cybersectools.com/categories/threat-modeling) solution by [默安科技 (MoreSec)](https://cybersectools.com/companies/moresec). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | IriusRisk Threat Modeling Tool | MoreSec STAC |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Threat Modeling | Threat Modeling |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | IriusRisk | 默安科技 (MoreSec) |
| Headquarters | – | – |

### Use cases and capabilities

| | IriusRisk Threat Modeling Tool | MoreSec STAC |
|---|---|---|
| Threat Modeling | Yes | Yes |
| Secure Development | Yes | Yes |
| Security Architecture | Yes | Yes |
| DevSecOps | – | Yes |
| RAG | – | Yes |
| Generative AI | – | Yes |
| Vulnerability | – | Yes |
| Documentation | – | Yes |
| Workflow | – | Yes |
| Security Compliance Training | – | Yes |

### Core features

**IriusRisk Threat Modeling Tool**

8 features listed. Sign in on the page to see them.

**MoreSec STAC**

10 features listed. Sign in on the page to see them.

### Integrations

**IriusRisk Threat Modeling Tool**

No integrations listed.

**MoreSec STAC**

1 integration listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [IriusRisk Threat Modeling Tool](https://cybersectools.com/tools/iriusrisk-threat-modeling-tool) fits if you are a startup and you need a free product.

## IriusRisk Threat Modeling Tool vs MoreSec STAC FAQ

Common questions when comparing IriusRisk Threat Modeling Tool vs MoreSec STAC for threat modeling.

### What is the difference between IriusRisk Threat Modeling Tool and MoreSec STAC?

**IriusRisk Threat Modeling Tool**: Threat modeling tool for dev teams to identify security design flaws pre-code. Built by IriusRisk.

**MoreSec STAC**: AI/RAG-based threat modeling tool for requirements and design stages of SDL. Built by 默安科技 (MoreSec).

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes IriusRisk Threat Modeling Tool and MoreSec STAC?

**IriusRisk Threat Modeling Tool** is made by IriusRisk. **MoreSec STAC** is made by 默安科技 (MoreSec). The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is IriusRisk Threat Modeling Tool a good alternative to MoreSec STAC?

Often, yes. IriusRisk Threat Modeling Tool and MoreSec STAC are both Threat Modeling products, and both cover Threat Modeling, Secure Development, Security Architecture. Key differences: IriusRisk Threat Modeling Tool is Free while MoreSec STAC is Commercial. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [IriusRisk Threat Modeling Tool vs DevArmor Continuous Threat Modeling](https://cybersectools.com/compare/devarmor-continuous-threat-modeling-vs-iriusrisk-threat-modeling-tool)
- [IriusRisk Threat Modeling Tool vs Atsign AI Architect](https://cybersectools.com/compare/atsign-ai-architect-vs-iriusrisk-threat-modeling-tool)
- [IriusRisk Threat Modeling Tool vs ArgusEye](https://cybersectools.com/compare/arguseye-vs-iriusrisk-threat-modeling-tool)
- [MoreSec STAC vs DevArmor Continuous Threat Modeling](https://cybersectools.com/compare/devarmor-continuous-threat-modeling-vs-moresec-stac)
- [MoreSec STAC vs Atsign AI Architect](https://cybersectools.com/compare/atsign-ai-architect-vs-moresec-stac)
- [MoreSec STAC vs ArgusEye](https://cybersectools.com/compare/arguseye-vs-moresec-stac)

## Alternatives to each

- [See all IriusRisk Threat Modeling Tool alternatives](https://cybersectools.com/alternatives/iriusrisk-threat-modeling-tool)
- [See all MoreSec STAC alternatives](https://cybersectools.com/alternatives/moresec-stac)

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Source: https://cybersectools.com/compare/iriusrisk-threat-modeling-tool-vs-moresec-stac

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/iriusrisk-threat-modeling-tool.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on IriusRisk Threat Modeling Tool and MoreSec STAC: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md