This white paper presents the “4 Cs” of Kubernetes security: cloud, cluster, container, and code. It explains shared responsibility, cluster hardening, role-based access control, TLS encryption, and runtime isolation. It stresses vulnerability scanning, image signing, sandboxed execution, and network policies to prevent privilege escalation and cross-container compromise. The document highlights complexity across multi-tool environments and urges strong governance, ongoing monitoring, and best-practice alignment to safeguard modern cloud-native workloads from evolving threats.

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