Browser-native AI SOC analyst learning team workflows

Legion Security was founded in 2024 and is based in New York City. It develops an AI-powered platform centered around KindFire, an adaptive AI agent designed to emulate human security analysts. This system operates via a browser-native interface that observes and learns from security teams’ workflows in real time, capturing institutional knowledge and converting it into actionable use cases.

In July 2025, Legion raised $38 million in a seed and Series A round led by Coatue with participation from Accel and Picture Capital. Other participants include angel investors from Wiz, Google, and CrowdStrike.