A scalable event notification system is provided. The event notification system manages the set of topics available for notification via a topic manager network. The event notification system transmits event notifications to event consumers via a subscription manager network. The configuration and operation of the subscription manager network may to reconfigured in response to changing load and fault conditions to facilitate the timely delivery of event notifications. The notification to subscribers also includes mechanisms to provide individual privacy and non-tampering of notifications. Notification may dynamically be delivered to alternative locations and localized to accommodate different natural languages.