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Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Hermes Messaging Service security model

The Hermes Messaging Service security model relies on the following capabilities.

CapabilityDescription
Namespaces and data isolationAll Kafka topics are namespaced per customer. You can only view topics that belong to you and your topics aren't visible to anyone else.
Authentication and authorizationThe Hermes Messaging Service requires certificate-based authentication using mTLS endpoint authentication with trusted identities and authorization based on identity.
Domain separationDomain separation is supported with the Hermes Messaging Service. See Hermes Messaging Service domain separation.
High-availabilityFailover is provided by multiple Kafka clusters running in separate ServiceNow datacenters.

Parent Topic:Hermes Messaging Service reference

Related topics

Hermes Messaging Service components

Hermes Messaging Service system properties

Hermes background jobs

Hermes Messaging Service roles

Hermes Messaging Service domain separation