Peel back the layers of your network and make your adversaries cry!
Free platform for threat hunting, enterprise security monitoring, and log management.
Questions: http://securityonion.net/discuss
Security Onion 3.0.0 Now Available with New and Improved Interface and Much More!
https://blog.securityonion.net/2026/03/security-onion-300-now-available-with.html
Security Onion 2.4.211 Is Now Available and Resolves Several Issues!
https://blog.securityonion.net/2026/03/security-onion-24211-is-now-available.html
Security Onion 3.0 Coming Soon!
https://blog.securityonion.net/2026/03/security-onion-30-coming-soon.html
Security Onion Documentation printed book now updated for Security Onion 2.4.210!
https://blog.securityonion.net/2026/03/security-onion-documentation-printed.html
Security Onion 2.4.210 Now Available with Updated Components and New Features including Local Model Support for Onion AI!
https://blog.securityonion.net/2026/03/security-onion-24210-now-available-with.html
Security Onion 2.4.201 now available with Suricata and Zeek Updates!
https://blog.securityonion.net/2026/01/security-onion-24201-now-available-with.html
Security Onion 2025 Year in Review!
https://blog.securityonion.net/2025/12/security-onion-2025-year-in-review.html
Our biggest new feature of the year is the Onion AI Assistant!
Early Bird Discount for upcoming Security Onion Fundamentals for Analysts and Threat Hunters Class in Colorado
https://blog.securityonion.net/2025/12/early-bird-discount-for-upcoming_31.html
