thentication policy</a> and related <a href=/v1.9/docs/concepts/security/#mutual-tls-authentication>mutual TLS authentication</a> concepts.</p></li><li><p>Read the <a href=/v1.9/docs/tasks/security/authentication/authn-policy>authentication policy task</a> to
learn how to configure authentication policy.</p></li><li><p>Have a Kubernetes cluster with Istio installed, without global mutual TLS enabled (for example, use the <code>default</code> configuration profile as described in <a href=/v1.9/docs/setup/get