Kubernetes clusters are increasingly targeted by attackers due to misconfigurations and insecure defaults. This guide covers the essential hardening steps to secure your K8s environment.

RBAC and Authentication

Implement Role-Based Access Control carefully — avoid ClusterAdmin role bindings, use namespaced roles, and enable audit logging for all API server interactions.

Pod Security

Enforce Pod Security Standards (Baseline or Restricted), disable privilege escalation, run containers as non-root.