**Overview**

Protecting billions of users and the world’s largest digital estates is among the hardest and highest-stakes challenges in technology. Microsoft Security exists to meet it — empowering every user, customer, and developer with end-to-end, simplified protection across heterogeneous, multi-cloud environments, while securing Microsoft’s own global estate. Our culture is built on a growth mindset, a drive for technical excellence, and the expectation that we bring our best each day to innovations that impact billions of lives.

**Microsoft Security Research (MSecR)** is the research engine behind Microsoft’s protection stack — turning planetary-scale telemetry, adversary intelligence, and AI-driven systems into proactive detection, disruption, and pre-emption of advanced threats. We work across the full estate — endpoint, identity, email, cloud apps, SaaS, and multi-cloud infrastructure — shifting protection left by transforming raw signal into actionable inte...