What should be a primary consideration when implementing access control in an operating system?

A primary consideration when implementing access control in an operating system is the potential for unauthorized access. This focus is essential because the main goal of access control is to protect sensitive information and critical system resources from being accessed by individuals who do not have the proper authorization.

Ensuring that unauthorized users cannot gain access is foundational to maintaining the overall security of the system. Access controls help to enforce the principle of least privilege, where users are given only the access rights necessary to perform their job functions. This minimizes the risk of data breaches, malicious activities, and other security incidents that can arise from unregulated access.

While ease of use, system performance optimization, and cost of implementation are important factors to consider in a comprehensive security strategy, they should not overshadow the critical need to prevent unauthorized access. Prioritizing security measures does not mean that usability or efficiency should be neglected; rather, they should coexist with the stringent safeguards necessary to protect the integrity and confidentiality of the system's data.