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Information system security officers establish and enforce security policies to protect an organizationâs computer infrastructure, networks and data.
With the needs for reliable systems that provide security and privacy to their consumers, the matter of information security is becoming more and more important. In order to be able to make sensible decisions about security, there is a need for measuring the security of information system. What do you need for information system security be successful? There are many aspects of security. Confidentiality is the heart of the information system security control. Availability and integrity of its data and its functionalities are both involved to ensure the security of an information system. Important information can be grouped in different levels, such as public, private, confidential etc. Organization has to define documents in proper levels and where data should be stored, who can access the data, and how it can be protected.