Granular access control is a security approach that allows for detailed and precise management of user permissions to access various resources within a system. It involves setting specific access levels and permissions for individual users or groups, down to the level of specific files, applications, or data fields. This fine-tuned control helps ensure that users can only access the information necessary for their roles, enhancing security by reducing the risk of unauthorized access or data breaches. Granular access control is essential for maintaining data confidentiality, integrity, and compliance with regulatory requirements.