lass=leaf-section><li role=none><a role=treeitem title="Use hardened container images to reduce Istio's attack surface." href=/v1.3/docs/ops/security/harden-docker-images/>Harden Docker Container Images</a></li><li role=none><a role=treeitem title="Learn how to extend the lifetime of the Istio self-signed root certificate." href=/v1.3/docs/ops/security/root-transition/>Extending Self-Signed Certificate Lifetime</a></li></ul></li><li role=treeitem aria-label=Telemetry><button aria-hidden=true></button><a tit