Cilium is an open source project which provides networking, security and load balancing for application services that are deployed using Linux container technologies by using the native eBPF technology in the Linux kernel. In this presentation we would talk about: - The evolution of the BPF filters and will explain the advantages of eBPF Filters and its use cases today in Linux especially on how Cilium networking utilizes the eBPF Filters to secure the Kubernetes workload with increased performance when compared to legacy iptables. - How Cilium uses SOCKMAP for layer 7 policy enforcement - How Cilium integrates with Istio and handles L7 Network Policies with Envoy Proxies. - The new features since the last release such as running Kubernetes cluster without kube-proxy, providing clusterwide NetworkPolicies, providing fully distributed networking and security observability platform for cloud native workloads etc.