What is one of the primary access control goals in an operating system?

The primary goal of access control in an operating system is to check permissions on every access attempt. This ensures that only authorized users can access or modify resources within the system, thus protecting the integrity, confidentiality, and availability of data.

By checking permissions, the operating system can enforce security policies that dictate what users and processes can do with various resources. This is crucial in multi-user systems where different users have different roles and access levels, making it essential to verify permissions prior to granting access. This systematic requirement allows for accountability and helps prevent unauthorized access or actions that could compromise system security.

The approach of checking permissions enhances security because it creates a controlled environment where access rights are clearly defined and monitored, thereby reducing the risk of data breaches or malicious activities. It is a fundamental practice in maintaining a secure operating system and is essential for ensuring appropriate data protection practices.