# depthfirst Platform vs Security Onion Pro: side-by-side comparison (2026) [depthfirst Platform](https://cybersectools.com/tools/depthfirst) is a commercial [application security posture management](https://cybersectools.com/categories/aspm) solution by [Depthfirst](https://cybersectools.com/companies/depthfirst). [Security Onion Pro](https://cybersectools.com/tools/security-onion-pro) is a commercial [security information and event management](https://cybersectools.com/categories/security-information-and-event-management-siem) solution by [Security Onion Solutions](https://cybersectools.com/companies/security-onion-solutions). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | depthfirst Platform | Security Onion Pro | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Application Security Posture Management | Security Information and Event Management | | Verified | No | No | | Deployment type | Cloud | On-Premises | | Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise | | Company | Depthfirst | Security Onion Solutions | | Headquarters | – | – | ### Use cases and capabilities | | depthfirst Platform | Security Onion Pro | |---|---|---| | DAST | Yes | – | | SCA | Yes | – | | Secret Detection | Yes | – | | Supply Chain Security | Yes | – | | Attack Paths | Yes | – | | CI/CD | Yes | – | | Vulnerability Prioritization | Yes | – | | Source Code Analysis | Yes | – | | Software Supply Chain | Yes | – | | NDR | – | Yes | | SSO | – | Yes | | Encryption | – | Yes | | MITRE ATT&CK | – | Yes | | YARA | – | Yes | | Sigma | – | Yes | | Suricata | – | Yes | | Case Management | – | Yes | | AI Copilot | – | Yes | | osquery | – | Yes | ### Core features **depthfirst Platform** 10 features listed. Sign in on the page to see them. **Security Onion Pro** 10 features listed. Sign in on the page to see them. ### Integrations **depthfirst Platform** No integrations listed. **Security Onion Pro** 12 integrations 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. - [depthfirst Platform](https://cybersectools.com/tools/depthfirst) fits if you want a cloud product and you are a small business. - [Security Onion Pro](https://cybersectools.com/tools/security-onion-pro) fits if you need to run it on your own servers. ## depthfirst Platform vs Security Onion Pro FAQ Common questions when comparing depthfirst Platform vs Security Onion Pro for application security posture management. ### What is the difference between depthfirst Platform and Security Onion Pro? **depthfirst Platform**: AI-powered AppSec platform for code, supply chain, secrets & DAST. Built by Depthfirst. **Security Onion Pro**: Commercial license tier adding enterprise features and support to Security Onion NSM/SIEM. Built by Security Onion Solutions. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes depthfirst Platform and Security Onion Pro? **depthfirst Platform** is made by Depthfirst. **Security Onion Pro** is made by Security Onion Solutions. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is depthfirst Platform a good alternative to Security Onion Pro? In part. depthfirst Platform and Security Onion Pro are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [depthfirst Platform vs Cantina Apex](https://cybersectools.com/compare/cantina-apex-vs-depthfirst) - [depthfirst Platform vs Legit VibeGuard](https://cybersectools.com/compare/depthfirst-vs-legit-vibeguard) - [depthfirst Platform vs Complioty](https://cybersectools.com/compare/complioty-vs-depthfirst) - [Security Onion Pro vs Cantina Apex](https://cybersectools.com/compare/cantina-apex-vs-security-onion-pro) - [Security Onion Pro vs Legit VibeGuard](https://cybersectools.com/compare/legit-vibeguard-vs-security-onion-pro) - [Security Onion Pro vs Complioty](https://cybersectools.com/compare/complioty-vs-security-onion-pro) ## Alternatives to each - [See all depthfirst Platform alternatives](https://cybersectools.com/alternatives/depthfirst) - [See all Security Onion Pro alternatives](https://cybersectools.com/alternatives/security-onion-pro) --- Source: https://cybersectools.com/compare/depthfirst-vs-security-onion-pro For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/depthfirst.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on depthfirst Platform and Security Onion Pro: 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