Permission-based access control (PBAC) is a type of access control where access to resources is granted based on specific permissions or privileges given to users or groups.
PBAC works by defining roles or groups and assigning specific permissions to those roles or groups. For example, a user may be assigned the role of “HR Manager” and given permissions to access and modify employee records, while a user assigned the role of “Sales Representative” may only be given permission to view customer records.
When a user requests access to a resource, their permissions are checked to ensure they have the necessary access. If the user has the required permissions, they are granted access to the requested resource. If they do not have the necessary permissions, access is denied.
PBAC takes a proactive approach to security by limiting access to resources only to those who require it, reducing the risk of unauthorized access and data breaches. It is commonly used in organizations to control access to sensitive data and resources, such as financial records or confidential information.