Which programming model is designed to separate data and functionality for security reasons?

The most appropriate choice for a programming model that separates data and functionality for security reasons is the Model-View-Controller (MVC) architecture. MVC is specifically designed to promote separation of concerns within an application. It divides an application into three interconnected components: the Model, which handles data and business logic; the View, which deals with the user interface; and the Controller, which manages the input and interaction between the Model and the View.

This separation allows for a more manageable and secure application design. By isolating the data (Model) from the user interface (View) and the application logic (Controller), vulnerabilities can be more readily contained and managed. The architecture helps ensure that changes in one area (like the UI) don’t adversely affect others (like data management), thus enhancing overall security.

While the Principle of Least Privilege does advocate for minimizing access rights of users and processes to the bare minimum necessary for functioning, it's not a programming model but rather a security principle. The Separation of Concerns is a broader concept that applies to programming as a whole but lacks the specific structural aspects that MVC implements. Lastly, Client-Server Architecture describes a network structure rather than addressing the separation of data and functionality within a programming context.

Overall, MVC directly