A method for security information management in a network comprises receiving event information for a plurality of events, wherein the event information for a particular event comprises a plurality of attributes associated with that event. The method continues by assigning a plurality of attribute values to each event, the attribute values of each event defining a point in n-dimensional space. The method continues by generating a first n-dimensional graph comprising a plurality of points, the points corresponding to the events. The method continues by receiving a second n-dimensional graph comprising a plurality of points. The method concludes by combining the first n-dimensional graph with the second n-dimensional graph.