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Usability: This ensures that users can enjoy the services offered by computers and information networks.In other words, information or programs cannot be lost or destroyed. Entirety: This system security requires that information or programs should not be forged, tampered, deleted or inserted deliberately in the process of storing, operation and communication.Confidentiality: This refers to protecting users’ information from disclosure and getting by unauthorized third party.Reliability: This refers to reducing incorrect false alarm in the operation of a computer system and enhancing the efficiency of a computer system.With the steady improvement of the degree of information, very severe computer system vulnerabilities can become a threat to national security in the aspects of economy, politics, and military.Ĭomputer security vulnerability can harm five kinds of system securities that include: Reliability, confidentiality, entirety, usability, and undeniableness. The harm of computer system vulnerability can be presented in several aspects, for example, the disclosure of confidential data, and widespread of Internet virus and hacker intrusion, which can cause great harm to enterprises and individual users by bringing about major economic loss. Some programmers program in an unsafe and incorrect way, which worsen computer system vulnerability. While designing and programming, programmers don’t really take into account all aspects of computer systems and this, in turn, causes computer system vulnerability.
#Computer network security in hindi pdf download#
Download of codes without integrity checksĬauses and Harms of Computer Security VulnerabilitiesĬomputer system vulnerabilities exist because programmers fail to fully understand the inner programs.Dependence on untrusted inputs in a security decision.Unrestricted upload of dangerous file types.Missing authentication for critical function.
#Computer network security in hindi pdf software#
#Computer network security in hindi pdf upgrade#
Definition: Cyber security or information technology security are the techniques of protecting computers, networks, programs and data from unauthorized access or attacks that are aimed for exploitation.ĭescription: Major areas covered in cyber security are:Īpplication security encompasses measures or counter-measures that are taken during the development life-cycle to protect applications from threats that can come through flaws in the application design, development, deployment, upgrade or maintenance.