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Security Onion
Security Onion is a free and open-source Linux distribution for intrusion detection, network security monitoring, and log management that provides a comprehensive suite of tools for cyber defense.
Pricing
Free
1EO Score
90%
Regions
UK
Category
Cyber Defense & Intelligence
Security Onion is featured in our Top Cyber Defense & Intelligence Tools list
See how Security Onion compares to other cyber defense & intelligence tools in our comprehensive ranking.
View Full Ranking →Frequently Asked Questions
Is Security Onion free?
Yes, Security Onion is free to use.
What is Security Onion used for?
Security Onion is a free and open-source Linux distribution for intrusion detection, network security monitoring, and log management that provides a comprehensive suite of tools for cyber defense.
What are the best alternatives to Security Onion?
Explore similar tools in the Cyber Defense & Intelligence category on our best tools list.