Security concept has undergone a historical change in the post cold war years. The traditional concept of security is changing into a new one.

冷战后，安全观发生了历史性的转型，正在由传统安全观向新型安全观过渡。

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Though traditional security can improve network information system's security, kinds of intrusions remain as before. Then, we must consider a new security concept, and that is survivability.

虽然传统的安全措施提高了网络信息系统的安全性，但各种入侵事件还是不断的发生，为此必须考虑一种新的安全理念，这就是可生存性。

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Securitization is a very important category and a pivotal step for understanding the concept of non-traditional security and the extended connotation of security.

安全化是理解非传统安全概念和安全内涵拓展的一个非常重要的范畴和关键性步骤。

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