An access system that grants users only those rights necessary for them to perform their work is operating on which security principle?
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A. B. C. D.B.
Source: TIPTON, Hal, (ISC)2, Introduction to the CISSP Exam presentation.
The security principle in question is the Least Privilege principle.
The Least Privilege principle is based on the idea of providing users with the minimum level of access necessary for them to perform their job duties effectively. This principle aims to limit the scope of damage that can be caused by a user if their account is compromised, either intentionally or unintentionally.
The implementation of the Least Privilege principle involves granting users access only to the resources and information that they need to perform their job functions. This can be achieved through a variety of mechanisms, such as role-based access control, attribute-based access control, and mandatory access control.
By following the Least Privilege principle, an access system can reduce the risk of data breaches, system compromises, and unauthorized access to sensitive information. It also helps organizations comply with regulatory requirements, such as the General Data Protection Regulation (GDPR) and the Health Insurance Portability and Accountability Act (HIPAA).
In contrast, the Discretionary Access principle allows users to have control over the access permissions of their own resources, while Mandatory Access enforces access control policies based on the security classification of the resource. Separation of Duties involves dividing responsibilities among different roles to prevent conflicts of interest and reduce the risk of fraud or error.