Corelight
Commercial Open NDR platform built on Zeek, Suricata, and YARA with sensors and centralized fleet management.
Technical Architecture & Overview
Corelight commercializes the network security monitoring stack, producing appliance, virtual, software, and cloud sensors that run Zeek, Suricata, and YARA, with Fleet Manager for centralized sensor configuration. The company was founded by the creators of Zeek and publishes open source Zeek packages on GitHub. Gartner named Corelight a Leader in the 2025 Magic Quadrant for Network Detection and Response.
Targeted Technical Use Cases
Organizations that want Zeek-grade NSM as a supported product with enterprise throughput and management.
Evaluation & Trade-offs
Core Strengths
- +Company founded by the creators of Zeek.
- +Hardware options sized for demanding links.
- +Sensor data integrates with major SIEM and XDR platforms.
Trade-Offs & Limitations
- -Commercial licensing; evaluation goes through a vendor demo.
- -Value depends on committed NSM operations.
Defensive Security Application
Network detection and evidence collection at enterprise scale on open source engines.
Frequently Asked Questions
What is Corelight?→
Corelight commercializes the network security monitoring stack, producing appliance, virtual, software, and cloud sensors that run Zeek, Suricata, and YARA, with Fleet Manager for centralized sensor configuration. The company was founded by the creators of Zeek and publishes open source Zeek packages on GitHub. Gartner named Corelight a Leader in the 2025 Magic Quadrant for Network Detection and Response.
What is Corelight used for?→
Organizations that want Zeek-grade NSM as a supported product with enterprise throughput and management.
What are the strengths of Corelight?→
- +Company founded by the creators of Zeek.
- +Hardware options sized for demanding links.
- +Sensor data integrates with major SIEM and XDR platforms.
What are the limitations of Corelight?→
- +Commercial licensing; evaluation goes through a vendor demo.
- +Value depends on committed NSM operations.
How is Corelight used defensively?→
Network detection and evidence collection at enterprise scale on open source engines.