[keycloak-user] Infinispan cache synchronization over TLS?

Hi everyone, I'm interested to know how the synchronization between infinispan caches occurs when working with keycloak in an HA mode. Is this synchronization by default happening over TLS? In the case of Keycloak, what would be the proper approach to find out what information is being stored and communicated between the infinispan caches and whether that information is stored securely? Thanks, Mike