re><h2 id=summary>Summary</h2><p>Istio’s authorization feature provides authorization at namespace-level, service-level, and method-level granularity.
It adopts &ldquo;RBAC + conditions” model, which makes it easy to use and understand as an RBAC system, while providing the level of
flexibility that an ABAC system normally provides. Istio authorization achieves high performance as it is enforced
natively on Envoy. While it provides the best security by working together with
<a href=/v1.15/docs/concepts/