Legion Emerges from Stealth with $38M to Redefine AI-Driven Security Operations with Browser-Native Platform

Legion, a browser-native AI Security Operations Center platform, has emerged from stealth with $38M in funding from Accel, Coatue, and Picture Capital. The platform uses machine learning to automate security operations by observing and learning from a team's investigations and workflows. It does not require any integrations or APIs and can be up and running in minutes. Legion aims to help security teams scale their expertise without adding headcount and address the issue of stretched thin security teams facing high alert volumes.

Legion, a browser-native AI Security Operations Center (SOC) platform, has emerged from stealth with $38M in funding from Accel, Coatue, and Picture Capital. The platform leverages machine learning to automate security operations by observing and learning from a team's investigations and workflows. It does not require any integrations or APIs and can be up and running in minutes. Legion aims to help security teams scale their expertise without adding headcount and address the issue of stretched thin security teams facing high alert volumes.

Legion was founded in 2024 by security veterans Ely Abramovitch (CEO), Michael Gladishev (VP R&D), and Eyal Fisher (CTO), alumni of Microsoft Sentinel and Cambridge AI research. The platform uses vision models and a lightweight browser extension to record analyst workflows, capturing both light and complex investigation patterns and the decision-making processes of top-performing analysts. It then shows teams the workflows it learned and helps optimize them. With permission, Legion investigates and responds to threats 24/7 using your existing tools, either with human-in-the-loop or completely autonomously. It scales your team's expertise without adding headcount. The platform doesn't require APIs, no custom playbooks, no disruptive integrations, and it can be up in minutes. It works with any browser-accessible platform, including SIEMs, threat intel tools, email platforms, and internal, homegrown systems.

Legion is already driving security operations for Fortune 500 enterprises across finance, healthcare, and energy. Customers have reported up to a 90% reduction in investigation and response times. Some have fully in-housed their SOC with Legion, eliminating the need for external headcount. In others, Legion's automation has delivered the equivalent capacity of nine additional analysts, without any new hiring.

The funding round was led by Coatue, with participation from Accel and Picture Capital (co-leads on the earlier seed round), along with angel investors from leading tech companies, including Google, Crowdstrike, and Wiz. The platform's unique approach to AI-driven security operations addresses the challenges faced by enterprise security teams, including tool proliferation, process complexity, and talent shortages.

References:
[1] https://www.morningstar.com/news/accesswire/1052086msn/legion-emerges-from-stealth-with-38m-to-redefine-ai-driven-security-operations
[2] https://www.infoq.com/news/2025/07/perplexity-comet/
[3] https://www.prnewswire.com/news-releases/cognizant-launches-ai-training-data-services-to-accelerate-ai-model-development-at-enterprise-scale-302517315.html