Description: File system access control is a fundamental mechanism that determines who can access or modify files within a file system. This control is implemented through permissions and policies that regulate the actions users can perform on files and directories. Modern operating systems use different access control models, such as discretionary access control (DAC), where file owners can set specific permissions, and mandatory access control (MAC), which imposes stricter restrictions based on security policies. The relevance of access control lies in its ability to protect the integrity and confidentiality of information, preventing unauthorized access that could result in data loss or exposure of sensitive information. Additionally, access control allows organizations to comply with security and privacy regulations, ensuring that only authorized users have access to critical information. In collaborative environments, this mechanism also facilitates the management of file ownership, allowing users to share information securely and in a controlled manner.
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