Identity-Based Access Control (IBAC) is a security mechanism that restricts access to resources based on the identity of users. Each user is assigned a unique identifier, and permissions are granted according to their role or attributes. This ensures that only authorized individuals can access specific data or systems. IBAC is commonly used in organizations to protect sensitive information. By managing access rights based on user identity, organizations can enforce security policies effectively. This approach helps prevent unauthorized access and enhances overall data security, making it easier to track user activities and maintain compliance with regulations.