# HarfangLab Vulnerability Assessment vs Semperis Purple Knight: side-by-side comparison (2026) [HarfangLab Vulnerability Assessment](https://cybersectools.com/tools/harfanglab-vulnerability-assessment) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [HarfangLab](https://cybersectools.com/companies/harfanglab). [Semperis Purple Knight](https://cybersectools.com/tools/semperis-purple-knight) is a free [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Semperis](https://cybersectools.com/companies/semperis). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | HarfangLab Vulnerability Assessment | Semperis Purple Knight | |---|---|---| | Pricing model | Commercial | Free | | Category | Vulnerability Assessment | Vulnerability Assessment | | Verified | No | No | | Deployment type | Hybrid | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise | | Company | HarfangLab | Semperis | | Headquarters | – | – | ### Use cases and capabilities | | HarfangLab Vulnerability Assessment | Semperis Purple Knight | |---|---|---| | CVE | Yes | – | | Vulnerability Prioritization | Yes | – | | Active Directory | – | Yes | | Misconfiguration | – | Yes | ### Core features **HarfangLab Vulnerability Assessment** 10 features listed. Sign in on the page to see them. **Semperis Purple Knight** 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. - [HarfangLab Vulnerability Assessment](https://cybersectools.com/tools/harfanglab-vulnerability-assessment) fits if you need both cloud and on-premises options. - [Semperis Purple Knight](https://cybersectools.com/tools/semperis-purple-knight) fits if you want a cloud product, you are a startup and you need a free product. ## HarfangLab Vulnerability Assessment vs Semperis Purple Knight FAQ Common questions when comparing HarfangLab Vulnerability Assessment vs Semperis Purple Knight for vulnerability assessment. ### What is the difference between HarfangLab Vulnerability Assessment and Semperis Purple Knight? **HarfangLab Vulnerability Assessment**: Continuous vulnerability detection and prioritization using CVE database. Built by HarfangLab. **Semperis Purple Knight**: Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning. Built by Semperis. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes HarfangLab Vulnerability Assessment and Semperis Purple Knight? **HarfangLab Vulnerability Assessment** is made by HarfangLab. **Semperis Purple Knight** is made by Semperis. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is HarfangLab Vulnerability Assessment a good alternative to Semperis Purple Knight? Often, yes. HarfangLab Vulnerability Assessment and Semperis Purple Knight are both Vulnerability Assessment products. Key differences: HarfangLab Vulnerability Assessment is Commercial while Semperis Purple Knight is Free. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [HarfangLab Vulnerability Assessment vs Halo Security Server Scanning](https://cybersectools.com/compare/halo-security-server-scanning-vs-harfanglab-vulnerability-assessment) - [HarfangLab Vulnerability Assessment vs Trickest Vulnerability Scanning](https://cybersectools.com/compare/harfanglab-vulnerability-assessment-vs-trickest-vulnerability-scanning) - [HarfangLab Vulnerability Assessment vs AI EdgeLabs Vulnerability Detection](https://cybersectools.com/compare/ai-edgelabs-vulnerability-detection-vs-harfanglab-vulnerability-assessment) - [Semperis Purple Knight vs Halo Security Server Scanning](https://cybersectools.com/compare/halo-security-server-scanning-vs-semperis-purple-knight) - [Semperis Purple Knight vs Trickest Vulnerability Scanning](https://cybersectools.com/compare/semperis-purple-knight-vs-trickest-vulnerability-scanning) - [Semperis Purple Knight vs AI EdgeLabs Vulnerability Detection](https://cybersectools.com/compare/ai-edgelabs-vulnerability-detection-vs-semperis-purple-knight) ## Alternatives to each - [See all HarfangLab Vulnerability Assessment alternatives](https://cybersectools.com/alternatives/harfanglab-vulnerability-assessment) - [See all Semperis Purple Knight alternatives](https://cybersectools.com/alternatives/semperis-purple-knight) --- Source: https://cybersectools.com/compare/harfanglab-vulnerability-assessment-vs-semperis-purple-knight For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/harfanglab-vulnerability-assessment.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on HarfangLab Vulnerability Assessment and Semperis Purple Knight: 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