Features
- Network monitoring, threat detection and log analysis
- Supports Suricata, Zeek and Elastic Stack
- Threat hunting and data traffic monitoring
- Multi-node management
- Data encryption and advanced reporting in paid versions
- Onion AI assistant to tune detection rules and automate repetitive tasks
- Live technical support and automatic updates in Pro
Pricing Details
The basic version of Security Onion is free and completely open source, and can be used without any fees for individuals or internal companies, providing all the basic monitoring and threat detection tools. Security Onion Pro is a paid version designed for companies and organizations that need advanced features and professional support. It includes live technical support, automatic updates, advanced reporting, additional data encryption, multi-node management, and an AI-powered assistant known as Onion AI Assistant to facilitate detection rule tuning and accelerate repetitive tasks for security teams. In terms of updates and support, the free version receives continuous updates from the open-source community, while the paid Pro version provides official support from Security Onion Solutions, including technical consulting and customized update plans. The company was founded in 2008 by Doug Burks, and since then the platform has gradually evolved to modern versions such as 2.4, with the addition of Pro and Onion AI features later on. In terms of distribution and usage, there are no official figures for users or installations, but the platform is used globally in more than 100 countries. In short, the basic version is free and open source, the Pro version is paid and offers advanced features and official support, while Onion AI is available exclusively under the Pro license, with updates and support continuing for both versions. The free version is sufficient for most small and medium-sized environments.