Explore the Open Policy Agent (OPA), a general-purpose policy engine enabling fine-grained, context-aware policy enforcement across the technology stack, in this 39-minute conference talk. Learn how OPA works and its applications in various scenarios, including microservice authorization, Kubernetes admission control, and end-user API authorization. Discover real-world implementations by companies like Netflix, Intuit, and Chef. Gain insights into securing Kubernetes, building internal security platforms for custom microservices, and addressing policy and security challenges in modern architectures. Delve into topics such as microservice architecture, authorization challenges, platform layers, and the Rego language. Ideal for those responsible for organizational security or interested in advanced policy enforcement techniques.