A permissions model is a framework that defines and manages which resources - such as files, data, or system features - users, applications, or extensions can access within a digital environment. By assigning specific permissions, organizations can control the actions that different entities are allowed to perform, reducing the risk of unauthorized access or data breaches. Permissions models are commonly used in operating systems, cloud services, and software applications to enforce security policies and ensure that only trusted users or processes can interact with sensitive resources. Properly designed permissions models are essential for maintaining robust cybersecurity and protecting organizational assets.