Cilium vs Everfox: 2026 Comparison
Cilium is a free network access control tool. Everfox is a commercial network access control tool by Everfox. Compare features, ratings, integrations, and community reviews side by side to find the best network access control fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Platform teams running Kubernetes on-premises or in hybrid clouds will get the most from Cilium because its eBPF kernel-level enforcement eliminates the latency and blind spots of traditional overlay networking. With 23,959 GitHub stars and active deployments at scale across financial services and public sector organizations, Cilium's approach to policy enforcement at the dataplane level is proven; it also handles observability without requiring sidecar injection, which keeps resource overhead predictable. Not the right fit for teams needing a managed SaaS experience or those prioritizing CSPM and infrastructure compliance scanning over network microsegmentation.
Government and defense teams handling classified data across multiple security domains need Everfox for cross-domain solutions that actually enforce unidirectional data flow without the performance tax of traditional air-gapped architectures. Its hardware-backed Data Diode and High Speed Guard handle high-throughput transfers across classification levels while the Content Disarm & Reconstruction engine strips file-based threats on ingestion, directly addressing NIST PR.DS and PR.AA controls that most competitors solve only through policy. Skip this if your organization runs primarily on a single classification level or needs insider risk detection to do heavy behavioral analytics; EverShield exists but isn't the platform's main strength relative to its cross-domain focus.
