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As an Introduction to this course, in your own words, define computer security as it is commonly used in the field today.

 answer saperately according to the question   need 1.1 to 1.7 in 150 words  Review Questions: 1.1 What is the OSI security architecture? 1.2 What is the difference between passive and active security threats? 1.3 List and briefly define categories of passive and active security threats? 1.4 List and briefly define categories of security services? 1.5 […]