Description: Lethal policies in access control systems refer to those security configurations that, if violated, can cause significant disruption to the functioning of a system. Access control systems allow administrators to define which resources can be accessed by specific applications, thus providing an additional layer of security. Lethal policies are those that, when infringed, not only restrict access to resources but can also lead to the termination of critical processes or data loss. These policies are fundamental in environments where security is paramount, as they help prevent attacks and mitigate the impact of vulnerabilities. Implementing lethal policies requires careful analysis of applications and their interactions with the system, ensuring that clear and effective boundaries are established. In this context, managing lethal policies becomes an essential task for system administrators, who must balance application functionality with the need to protect the system from potential threats.