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Information Systems Security Using Access Controls (Essay Sample)

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Write a one page essay about Information Systems Security Using Access Controls.

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Information Systems Security Using Access Controls.
System's security policy expresses fundamental choices made by the institution for its data security. They define the principle on which access is granted, and what the programs executed on behalf of a user are allowed to do. A security access system can be defined using two parts that cooperate with each other: strategy of security access that describes all the environments and specifications of an entire organization on the security level and access model.
While secure communication is usually necessary for security in computer systems, it is seldom sufficient. Computer systems often rely on access control for security. For instance, access control plays a role in enforcing run-time security specifications in such systems. Unfortunately, while secure communication is relatively well understood, several aspects of security in such systems is an important and challenging research problem. The fundamental idea behind access control is that obtaining a secure object should require some privileges that can be checked at run time.
Discretionary Access Control is based on information ownership and rights delegation. (Department of Defense, 1985). In DAC model, the creator of the information is also considered the owner and administrator of the information. More specifically, the creator is r...
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