Description
Security Onion is a robust open-source cybersecurity platform designed to provide comprehensive security monitoring and threat detection capabilities. It is widely deployed across various industry verticals, including government, finance, education, and healthcare, as well as in Fortune 500 companies. The platform is installed in over 125 countries, demonstrating its global reach and effectiveness.
Security Onion offers flexible installation options, allowing users to deploy it in internet-connected environments or air-gapped networks. It provides a user-friendly interface for alerting, threat hunting, and case management, enabling users to drill down into alerts, acknowledge them, and escalate incidents as needed. The platform supports the import and management of Sigma, Suricata, and YARA detection rules, ensuring comprehensive threat coverage.
One of the key features of Security Onion is its ability to parse and classify network traffic using tools like Zeek and Suricata, providing detailed packet metadata analysis. It also offers packet capture storage and retrieval capabilities, allowing users to view and download raw packet data for further investigation.
Security Onion integrates with various external systems through its API, enabling automation of security processes. It supports role-based access control, ensuring secure user management, and provides encryption for data at rest using AES 256. The platform is compliant with Federal Information Processing Standards (FIPS) and Security Technical Implementation Guides (STIG) for strict organizational policy adherence.
The platform is scalable, allowing users to add new sensor and search nodes as their enterprise grows. It includes features like intrusion detection honeypots, Mitre ATT&CK Navigator, and limited live response capabilities using osquery. Security Onion also offers professional support, enhanced SLA options, and health checks to ensure optimal performance.
Security Onion's Core Features
Flexible installation options
Alerting and threat hunting
Case management and analyzers
Detection rule management
Packet metadata analysis
Packet capture storage
Role-based access control
API integration
Data encryption
Scalable deployments
Intrusion detection honeypots
Mitre ATT&CK Navigator
Limited live response
Professional support
Health checks
How to use Security Onion?
Install: Choose installation method
Configure: Set up detection rules
Monitor: Analyze network traffic
Respond: Manage alerts and cases
Scale: Add nodes as needed
Security Onion's Use Cases
- Threat Detection
- Network Monitoring
- Incident Response
- Security Education
- Compliance Management





