5 Things you didn’t know about Cilium Network Polices

Cilium Network Policies go far beyond standard Kubernetes NetworkPolicies in five key ways: identity-based enforcement using Kubernetes labels instead of IPs, cluster-wide policies via CiliumClusterwideNetworkPolicy, ServiceAccount-based access control for zero-trust workload isolation, DNS/FQDN-based egress rules that track dynamic IPs, and Layer 7 HTTP filtering using Envoy. Built on eBPF, Cilium attaches security identity directly to workloads and includes Hubble for built-in observability of network flows, DNS queries, and policy decisions without any additional tooling.