# What Is Cilium?

DevFeed: [What Is Cilium?](<https://devfeed.tech/articles/what-is-cilium-31342.md>)

Original publisher: [Read original article](<https://isovalent.com/blog/post/what-is-cilium/>)

Author: Christian Hernandez

Published: 2026-07-23T07:01:00Z

Content type: tutorial

Language: en

Sources: [Isovalent - The latest articles covering eBPF-based Networking, Observability, and Security](<https://devfeed.tech/sources/isovalent-the-latest-articles-covering-ebpf-based-networking-observability-and-security.md>)

Topics: [Cilium](<https://devfeed.tech/topics/cilium.md>), [eBPF](<https://devfeed.tech/topics/ebpf.md>), [Kubernetes networking](<https://devfeed.tech/topics/kubernetes-networking.md>), [observability](<https://devfeed.tech/topics/observability.md>), [Security](<https://devfeed.tech/topics/security.md>), [Cloud](<https://devfeed.tech/topics/cloud.md>)

Tags: [cilium](<https://devfeed.tech/tags/cilium.md>), [cloud-native](<https://devfeed.tech/tags/cloud-native.md>), [ebpf](<https://devfeed.tech/tags/ebpf.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [kubernetes-networking](<https://devfeed.tech/tags/kubernetes-networking.md>), [observability](<https://devfeed.tech/tags/observability.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

An introductory article explains Cilium and describes how it uses eBPF for Kubernetes networking, security, and observability in cloud-native infrastructure.

## Source excerpt

Learn what Cilium is, how it uses eBPF to power Kubernetes networking, security, and observability, and why organizations choose it for modern cloud-native infrastructure.