Security Onion is a free, open-source Linux distro for threat hunting and security monitoring. See features, bundled tools, and paid training and support…
Security Onion is a free and open-source Linux distribution for threat hunting, enterprise security monitoring, and log management, started by Doug Burks in 2008. As adoption grew, Burks founded Security Onion Solutions, LLC in 2014 to provide official training, support, and professional services around the free platform, headquartered in Evans, Georgia, USA.
The software itself remains completely free and open source, while Security Onion Solutions, LLC generates revenue through paid training, support, and professional services layered on top of the free distribution.
Security Onion bundles best-of-breed open-source security tools rather than reinventing them, including the Suricata intrusion detection and prevention engine, the Zeek network security monitoring framework, and the Elastic Stack for log storage, search, and visualization, combined into a single, ready-to-deploy distribution for security teams.
On top of these bundled tools, Security Onion provides its own analyst interfaces for alert triage, case management, and hunting across network and log data, aimed at giving security operations teams a unified platform rather than requiring them to integrate each open-source component separately.
The Security Onion software itself is entirely free and open source, with no licensing cost regardless of deployment scale. Security Onion Solutions, LLC, the official commercial entity behind the project, generates revenue through separate paid offerings.
These paid offerings include on-demand training in free and premium tiers, instructor-led training delivered in person or virtually, and professional support and deployment services. None of this pricing is published publicly; it is quote-based and varies by deployment scale and requirements, with government pricing available through partner IntelliGenesis.
Yes. Security Onion is a completely free and open-source Linux distribution. Optional paid training, support, and professional services are available separately from Security Onion Solutions, LLC.
Security Onion was started as an open-source project by Doug Burks in 2008. He later founded Security Onion Solutions, LLC in 2014 to provide official commercial training and support.
Security Onion Solutions, LLC is headquartered at 717 Bishops Circle, Evans, Georgia, USA.
Security Onion bundles the Suricata intrusion detection and prevention engine, the Zeek network security monitoring framework, and the Elastic Stack for log storage, search, and visualization, along with its own analyst interfaces.
Yes. Security Onion Solutions, LLC is the only official training provider, offering both on-demand training in free and premium tiers and instructor-led training delivered in person or virtually.
Pricing for Security Onion Solutions' support and training is not published publicly; it is quote-based and depends on deployment scale, support level, and specific requirements.
The project reports over 1,000,000 downloads with installations in nearly every country in the world.
Yes. Security Onion is designed for threat hunting, enterprise security monitoring, and log management, and is used by security operations centers of varying sizes worldwide.