div><p>Understanding, controlling and securing your external service access is one
of the key benefits that you get from a service mesh like Istio. From a security
and operations point of view, it is critical to monitor what external service traffic
is getting blocked as they might surface possible misconfigurations or a
security vulnerability if an application is attempting to communicate with a
service that it should not be allowed to. Similarly, if you currently have a
policy of allowing any external ser