# DataStealth Data Security Platform vs Security Onion Pro: side-by-side comparison (2026) [DataStealth Data Security Platform](https://cybersectools.com/tools/datastealth-data-security-platform) is a commercial [data security posture management](https://cybersectools.com/categories/dspm) solution by [DataStealth](https://cybersectools.com/companies/datastealth). [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 | | DataStealth Data Security Platform | Security Onion Pro | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Data Security Posture Management | Security Information and Event Management | | Verified | No | No | | Deployment type | Hybrid | On-Premises | | Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise | | Company | DataStealth | Security Onion Solutions | | Headquarters | – | – | ### Use cases and capabilities | | DataStealth Data Security Platform | Security Onion Pro | |---|---|---| | PII | Yes | – | | Sensitive Data | Yes | – | | Tokenization | Yes | – | | GDPR | Yes | – | | PCI DSS | 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 **DataStealth Data Security Platform** 8 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 **DataStealth Data Security 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. - [DataStealth Data Security Platform](https://cybersectools.com/tools/datastealth-data-security-platform) fits if you need both cloud and on-premises options 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. ## DataStealth Data Security Platform vs Security Onion Pro FAQ Common questions when comparing DataStealth Data Security Platform vs Security Onion Pro for data security posture management. ### What is the difference between DataStealth Data Security Platform and Security Onion Pro? **DataStealth Data Security Platform**: Agentless data discovery & classification platform for PII, PHI, and PCI. Built by DataStealth. **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 DataStealth Data Security Platform and Security Onion Pro? **DataStealth Data Security Platform** is made by DataStealth. **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 DataStealth Data Security Platform a good alternative to Security Onion Pro? In part. DataStealth Data Security 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 - [DataStealth Data Security Platform vs comforte TAMUNIO](https://cybersectools.com/compare/comforte-tamunio-vs-datastealth-data-security-platform) - [DataStealth Data Security Platform vs Teleskope Kosmo](https://cybersectools.com/compare/datastealth-data-security-platform-vs-teleskope-data-subject-rights-request-automation) - [DataStealth Data Security Platform vs Ground Labs Enterprise Recon](https://cybersectools.com/compare/datastealth-data-security-platform-vs-ground-labs-enterprise-recon) - [Security Onion Pro vs comforte TAMUNIO](https://cybersectools.com/compare/comforte-tamunio-vs-security-onion-pro) - [Security Onion Pro vs Teleskope Kosmo](https://cybersectools.com/compare/security-onion-pro-vs-teleskope-data-subject-rights-request-automation) - [Security Onion Pro vs Ground Labs Enterprise Recon](https://cybersectools.com/compare/ground-labs-enterprise-recon-vs-security-onion-pro) ## Alternatives to each - [See all DataStealth Data Security Platform alternatives](https://cybersectools.com/alternatives/datastealth-data-security-platform) - [See all Security Onion Pro alternatives](https://cybersectools.com/alternatives/security-onion-pro) --- Source: https://cybersectools.com/compare/datastealth-data-security-platform-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/datastealth-data-security-platform.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on DataStealth Data Security 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