Cilium

Cilium is a software tool that helps manage and secure network communication between applications running in cloud environments or data centers. It uses advanced technology called eBPF to efficiently monitor, control, and enforce security policies for data exchanged within the network. This means it ensures that only authorized data flows happen between services, improves network performance, and enhances security. Cilium is often used in containerized applications and microservices architectures to provide visibility and protection for complex, dynamic network environments.