# Nessus Professional vs PT Dephaze: side-by-side comparison (2026)

[Nessus Professional](https://cybersectools.com/tools/nessus-professional) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Tenable](https://cybersectools.com/companies/tenable). [PT Dephaze](https://cybersectools.com/tools/pt-dephaze) is a commercial [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [Positive Technologies](https://cybersectools.com/companies/positive-technologies). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Nessus Professional | PT Dephaze |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Vulnerability Assessment | Penetration Testing |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Tenable | Positive Technologies |
| Headquarters | – | – |

### Use cases and capabilities

| | Nessus Professional | PT Dephaze |
|---|---|---|
| Vulnerability | Yes | Yes |
| Security Scanning | Yes | – |
| CVE | Yes | – |
| Penetration Testing Framework | Yes | – |
| NIST | Yes | – |
| PCI DSS | Yes | – |
| CIS | Yes | – |
| Network Scanning | Yes | Yes |
| VAPT | Yes | – |
| MITRE ATT&CK | – | Yes |
| Lateral Movement | – | Yes |
| Continuous Testing | – | Yes |
| Reconnaissance | – | Yes |
| Privilege Escalation | – | Yes |
| Red Team | – | Yes |
| Security Validation | – | Yes |

### Core features

**Nessus Professional**

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

**PT Dephaze**

10 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.

- [Nessus Professional](https://cybersectools.com/tools/nessus-professional) fits if you are a startup or a small business.

## Nessus Professional vs PT Dephaze FAQ

Common questions when comparing Nessus Professional vs PT Dephaze for vulnerability assessment.

### What is the difference between Nessus Professional and PT Dephaze?

**Nessus Professional**: Vulnerability scanner for assessing networks, systems, and apps for security flaws. Built by Tenable.

**PT Dephaze**: Agentless automated pentest platform for continuous infrastructure security testing. Built by Positive Technologies.

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

### Who makes Nessus Professional and PT Dephaze?

**Nessus Professional** is made by Tenable. **PT Dephaze** is made by Positive Technologies. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Nessus Professional a good alternative to PT Dephaze?

In part. Nessus Professional and PT Dephaze are not in the same category on CybersecTools. Both cover Network Scanning, Vulnerability. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Nessus Professional vs Webray RayScan](https://cybersectools.com/compare/nessus-professional-vs-webray-rayscan)
- [Nessus Professional vs Nsauditor Network Security Auditor](https://cybersectools.com/compare/nessus-professional-vs-nsauditor-network-security-auditor)
- [Nessus Professional vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/nessus-professional-vs-positive-technologies-xspider-pro)
- [PT Dephaze vs Webray RayScan](https://cybersectools.com/compare/pt-dephaze-vs-webray-rayscan)
- [PT Dephaze vs Nsauditor Network Security Auditor](https://cybersectools.com/compare/nsauditor-network-security-auditor-vs-pt-dephaze)
- [PT Dephaze vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/positive-technologies-xspider-pro-vs-pt-dephaze)

## Alternatives to each

- [See all Nessus Professional alternatives](https://cybersectools.com/alternatives/nessus-professional)
- [See all PT Dephaze alternatives](https://cybersectools.com/alternatives/pt-dephaze)

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Source: https://cybersectools.com/compare/nessus-professional-vs-pt-dephaze

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

More on Nessus Professional and PT Dephaze: 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