This guide presents Fastly's approach to enhancing Kubernetes security within its infrastructure. It outlines the challenges posed by a complex and evolving threat landscape, particularly as Kubernetes becomes increasingly adopted by enterprises. The document details Fastly's proactive security strategy, which integrates security measures into the development lifecycle, ensuring vulnerabilities are addressed early. It describes the Elevation Ecosystem, a secure Kubernetes environment that empowers developers while maintaining robust security practices. The guide emphasizes the importance of threat modeling, identifying potential actors and attack vectors, and outlines best practices for securing Kubernetes environments. Additionally, it discusses the significance of automated security checks, compliance, and the role of platform engineering in simplifying security for developers. By embedding security into workflows, Fastly aims to create a seamless experience that fosters innovation while safeguarding its Kubernetes infrastructure against emerging threats.