There is a lot of something concerned with "cost reduction" and " new business development " directly connected with achievement for a management problem of an enterprise. When you pick up a concern, "business continuity", "cost reduction", "compliance", "global development", "new business creation" is raised since the earthquake. Correspondence to a cyberattack was added to these inside in recent years. When management information "was computerized", the proprietor who grasps the threat and risk accurately is little. A study on the behavior of the management team at the time of decision-making for the protection of cyber attack.