Orion is able to provide identification of networks via ‘Risk Entities’ (user defined ‘Red Flag Indicators’). A Risk Entity can be as simple or as complex as desired and is fully defined by the user. Orion provides for manual or fully automated building of networks based on the defined Risk Entity. Any network or risk entity can also be set to ‘Monitor’ which allows the user to continue with their day to day activity safe in the knowledge that any additional exposure to a network or the relevant criteria will be accounted for and included, and users can then be alerted of these events without the need for them to re-query their database each time. This means that Orion is essentially able to build networks ‘on the fly’, rather than having to have the links already established prior to network generation.