Dan Wendlant and Thomas Graf, co-founders of Isovalent, discuss the open-source software Cilium, which enables improved networking and security controls for Linux systems in containerized environments. They explore the impact of containers and Kubernetes on application management, the shift from VMs to containers and its effects on networking, the significance of eBPF in programmable Linux networking, and the abstract complexity and enhanced visibility in Kubernetes networking provided by Cilium.