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Traditional security is a constant stack of security devices, security products, Later, in order to make better use of these secure infrastructure resources, Defence-in-depth emerged, Take the layer as an example, Layer by layer, Defense from the outside to the inside, However, security problems emerge one after another. It also shows that this still cannot well ensure the safety of the organization. Safety is a growing problem, which cannot be solved by one-time deployment. Safety problems not only come from external and internal damages, but also are not rare intentionally or unintentionally. Therefore, the focus should be on sparse, starting from three aspects: detection, emergency response and process.Chapter IV Supervision ContentsA visionary king in Swedish history said that from the perspective of daily application, decimal is more convenient than decimal. Before his death, he had imagined that the decimal system would be replaced by the decimal system within his jurisdiction.　　《邪恶力量》（Supernatural）由美国WB电视台制作，讲述灵异超自然现象大多来自于美国的都市传说和民间传说。ALT+NL Linear Annotation ALT+VV4 Quick Creation of Four Viewports14岁的小女孩苏西不幸被一位邻居强奸杀害，升入天堂的苏西眷恋着生者的世界，只能像幽灵一样跟随着她的家人。有一回吃点心撑病了，把我娘吓坏了。