Embodiments of a system and method are disclosed to provide impact modeling and prediction of attacks on cyber targets (IMPACT). An embodiment of the system and method creates a network model to describe the IT resources of an organization, creates a business model to describe the origination's mission, and creates a correlation model that correlates the network model and the business model to describe how the origination's mission relies on the IT resources. Proper analysis may show which cyber resources are of tactical importance in a cyber attack. Such analysis also reveals which IT resources contribute most to the organization's mission. These results may then be used to formulate IT security strategies and explore their trade-offs, which leads to better incident response.