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Computer Security Introduction  In this article we will talk about computer security.If you want to make your system secure and wants to know about different types of attack and wants to prevent yourself from attacker then this article gonna help you alot. 1. Computer security is the protection of information systems from theft or damage to the hardware, software and to the information on them. 2. It includes controlling physical access to the hardware, as well as protecting against  harm that may come via network access, data and code injection, and due to malpractice by operators. We can design the policies for information security within an organization by providing : Confidentiality : Only authorized users can access the data resources and information Integrity : Only authorized users should be able to modify the datawhen needed. Availability : Data should be available to users when needed. Authentication : Communicating with the authorized Advantages of computer securit...