Enforcing Zero-Trust Egress in Kubernetes with NetworkPolicies (opens in new tab)

Most teams invest heavily in locking down inbound traffic — ingress rules, service meshes, mutual TLS — while leaving outbound traffic largely uncontrolled. That oversight creates a significant attack surface: a compromised container can silently reach out to an adversary-controlled server, exfiltrate sensitive data, or retrieve a second-stage payload without triggering a single alert, because nothing was monitoring traffic in the outbound direction. Zero-trust networking applies the principl...