Description: The Access Control Protocol is a set of rules and procedures that define how access control to resources in a network or system is implemented. This protocol is fundamental to ensuring that only authorized users can access sensitive information or perform specific actions within a digital environment. Through authentication and authorization mechanisms, the protocol establishes who can access what resources and under what conditions. Its design can vary according to the security needs of the organization and may include methods such as passwords, tokens, biometrics, and more. In a world where cyber threats are becoming increasingly sophisticated, the Access Control Protocol becomes an essential tool for data protection and identity management. Additionally, it integrates into broader security architectures, such as the Zero Trust model, which assumes that both internal and external users can potentially be malicious, requiring constant verification of identity and access. This approach not only enhances security but also allows for more effective network segmentation, limiting access to critical resources and minimizing the risk of security breaches.