METHOD AND SYSTEM FOR ASSESSING ATTACKS ON COMPUTER NETWORKS USING BAYESIAN NETWORKS

A method and system are disclosed for processing data from a computer network to determine an occurrence of and characterize a particular activity associated with the computer network. In accordance with exemplary embodiments of the present invention, a collection of data is managed that corresponds to events associated with the computer network. At least one model is established to correlate an occurrence of a predetermined set of events. At least one hypothesis is formed, using the at least one model, that characterizes the particular activity associated with the computer network. The at least one hypothesis is evaluated using the at least one model. The steps of forming and evaluating are performed interactively with the step of managing to iteratively update the collection of data.