Prime Minister’s Office | National Cyber Directorate A Complete Solution The three-layer approach offers a holistic solution, taking into account the differences in the level of risk, the nature of the threat and the degree of its clarity. The following graph illustrates the state's mode of action, according to the three-layer approach, given the context of the State's action (the horizontal axis) and the magnitude of the threat to the nation (the vertical axis). For example, the resilience layer enables a first response to incidents that do not present an immediate and severe threat, but may cause cumulative damage over time, or might and severe a national defense response as the understanding of the threat evolves. Level of National Risk Active Defense Dedicated Guidance for Critical Infrastructure Defensive Operations Guidance in Essential Sectors Sectoral Centers National Defense Law Enforcement Incident Response Aggregate Robustness Systemic Resilience Information Sharing Regardless of an Event Regarding a Specific Threat Early Warninng “Call Center” Regarding a Concrete Event Understanding the Nature of an Event National Cyber Security Strategy In Brief | 13