1. A method in a secure computing system of reducing the vulnerability of an application node to attack, wherein the node has a platform address and a device address, comprising: mapping a device address corresponding to a first application node to a first platform address; mapping the first platform address to a first node identifier; detecting a predetermined event within the secure computing system; in response to the detected event, remapping the device address corresponding to the first application node to a second platform address and remapping the first node identifier to the second platform address; securely synchronizing the remappings between at least two application nodes; receiving a request to communicate a message, the request specifying the first node identifier as a destination for the message; in response to the request, determining a second device address based on the remapped first node identifier, and communicating with an application node corresponding to the first node identifier based on the second device address.