In what context is Mandatory Access Control (MAC) commonly found?

Mandatory Access Control (MAC) is a security model that enforces access restrictions based on the classification of information and the user’s security clearance level. This model is primarily designed for environments where data classification and security are critical, which is why it is most commonly found in military settings. In such contexts, strict protocols are required to safeguard sensitive information and operations, making MAC suitable as it helps ensure that users can only access the data for which they have been explicitly authorized.

In contrast, enterprise settings might utilize other access control models like Discretionary Access Control (DAC) or Role-Based Access Control (RBAC), which allow more flexibility in permissions. Home networks and public Wi-Fi zones typically employ far less rigorous access controls, as the focus is more on convenience than stringent security measures. Thus, the distinct security demands of military operations make MAC the appropriate choice in this context.