What is Security Onion?
Security Onion collects and analyses security information for investigations.
Who is Security Onion for?
Teams evaluating security operations that need security monitoring. Confirm the intended workflow, deployment and required access before selecting a package.
Security Onion features
The core capabilities to consider for your workflow.
- Security monitoring
- Network analysis
- Investigation tools
Security Onion pricing
Free access available
Confirm the free product scope and any paid options needed for the workflow. Free software access does not remove connected-service, implementation or operational costs.
Calculate the cost of your quote →Free access & evaluation
The official product page identifies free software access. Review its conditions and any separately charged services, extensions, processing or infrastructure.
Before you choose Security Onion
Which endpoints, applications, cloud resources and log sources must be monitored?
Who owns alert triage, response permissions, retention and connected service costs?
Explore related software
Security Onion FAQs
Does Security Onion have a free plan?
The official product page identifies free software access. Review its conditions and any separately charged services, extensions, processing or infrastructure.
Who is Security Onion for?
Teams evaluating security operations that need security monitoring. Confirm the intended workflow, deployment and required access before selecting a package.
What should I compare before buying?
Check the tier that contains your essential features, confirm plan limits and compare the total quote with your own expected usage.