</h2><p>In addition to specifying an authentication policy for your entire mesh, Istio also lets you specify policies for particular namespaces or services. A
namespace-wide policy takes precedence over the mesh-wide policy, while a service-specific policy has higher precedence still.</p><h3 id=namespace-wide-policy>Namespace-wide policy</h3><p>The example below shows the policy to enable mutual TLS for all services in namespace <code>foo</code>. As you can see, it uses kind: &ldquo;Policy” rather than &l