Securing a Critical Infrastructure

In this article we present a mechanism of protection and reconfiguration of a critical infrastructure. In order to react in real time to various threats and challenges occuring, this mechanism is distributed and fully automated, no human intervention is required. This mechanism can then be seen as the immune system of the critical infrastructure on which it is deployed.The immune system has agents that collect data on various different entities infrascture review, analyze and deduce the Security Assurance values of these entities and commits an immune response (reconfiguration, isolation of the compromised parts, etc) upon detection of anomalies or threats. This immune system is also able to react to and tolerate failures or attacks since its agents move upon an resilient overlay network.