Stellar Cyber, founded in 2015 by cybersecurity veteran Aimei Wei, develops an Open XDR platform that unifies security operations for lean security teams at mid-sized organisations and managed security service providers (MSSPs). The company is credited with pioneering the Open XDR category. Its platform integrates AI-driven SIEM and Network Detection and Response (NDR) capabilities to detect, contextualise and automatically respond to threats across identity, network, cloud and endpoint environments, with the stated aim of stopping attacks in minutes rather than days.
Artificial intelligence sits at the centre of the product. A technology the firm calls Multi-Layer AI combines machine learning, graph machine learning and generative AI to power threat detection and autonomous security operations centre (SOC) functions. Alongside this, the company works across extended detection and response, hyper-automation, SIEM, NDR, and identity, cloud and endpoint security - a spread of domains relevant to engineers and researchers in applied AI, graph learning and generative models.
The platform is aimed at organisations facing thousands of daily alerts from fragmented tooling, and is designed to deliver enterprise-grade security without enterprise-scale resources. The underlying philosophy is described as a human-augmented autonomous SOC, in which automation handles routine detection and response work while analysts retain oversight.






