# dref vs NSO Group: side-by-side comparison (2026)

[dref](https://cybersectools.com/tools/dref) is a free [red-team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution. [NSO Group](https://cybersectools.com/tools/nso-group) is a commercial [red-team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution by [NSO Group](https://cybersectools.com/companies/nso-group). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | dref | NSO Group |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Red-Team & Adversary Emulation | Red-Team & Adversary Emulation |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Enterprise |
| GitHub stars | 492 | – |
| Last commit | Apr 2021 | – |
| Company | – | NSO Group |
| Headquarters | – | – |

### Use cases and capabilities

| | dref | NSO Group |
|---|---|---|
| Security Research | Yes | – |
| DNS Rebinding | Yes | – |
| OSINT | – | Yes |

### Core features

**dref**

No features listed.

**NSO Group**

5 features 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.

- [dref](https://cybersectools.com/tools/dref) fits if you are a startup or a small business or a mid-market company, you need a free product and you want an open-source product.

## dref vs NSO Group FAQ

Common questions when comparing dref vs NSO Group for red-team & adversary emulation.

### What is the difference between dref and NSO Group?

**dref**: A DNS rebinding exploitation framework.

**NSO Group**: Govt-focused cyber intelligence & surveillance software provider. Built by NSO Group.

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

### Who makes dref and NSO Group?

**dref** is open-source with 492 GitHub stars. **NSO Group** is made by NSO Group. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is dref a good alternative to NSO Group?

Often, yes. dref and NSO Group are both Red-Team & Adversary Emulation products. Key differences: dref is Free while NSO Group is Commercial, dref is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [dref vs REDLattice](https://cybersectools.com/compare/dref-vs-redlattice)
- [dref vs GoSecure Titan® Adversarial Simulation](https://cybersectools.com/compare/dref-vs-gosecure-titanr-adversarial-simulation)
- [dref vs Two Six Technologies IKE](https://cybersectools.com/compare/dref-vs-two-six-technologies-ike)
- [NSO Group vs REDLattice](https://cybersectools.com/compare/nso-group-vs-redlattice)
- [NSO Group vs GoSecure Titan® Adversarial Simulation](https://cybersectools.com/compare/gosecure-titanr-adversarial-simulation-vs-nso-group)
- [NSO Group vs Two Six Technologies IKE](https://cybersectools.com/compare/nso-group-vs-two-six-technologies-ike)

## Alternatives to each

- [See all dref alternatives](https://cybersectools.com/alternatives/dref)
- [See all NSO Group alternatives](https://cybersectools.com/alternatives/nso-group)

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Source: https://cybersectools.com/compare/dref-vs-nso-group

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

More on dref and NSO Group: 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