Cyber crises are
|“||[c]oordinated, large-scale cyber events that result in or have the potential to result in a widespread outage or disrupt multiple infrastructures are a national security concern.||”|
"Cyber crises may target one or more of the following three levels: (1) end users; (2) traffic capacity; and (3) network controls. An event involving one level may affect the other levels. In addition, cyber crises affecting one infrastructure may result in problems in another infrastructure because of the interdependence of the Nation's critical infrastructures. Cyber crises may also transcend national and geographic boundaries."