Admission control

Admission control is a cybersecurity mechanism that regulates which devices and users are permitted to connect to or access network resources and services. Before granting access, it verifies the identity of the requesting entity through authentication, confirms its authorized permissions, and checks compliance with predefined security policies. This includes pre-admission checks on device health, user roles, and network segment requirements to ensure only trusted and compliant endpoints interact with the network environment.

By enforcing these controls proactively, admission control prevents unauthorized access, reduces the attack surface, and helps maintain the integrity, confidentiality, and availability of critical network assets. It is an indispensable component of modern network security architectures, protecting organizations against both internal and external threats while ensuring adherence to organizational security postures and compliance requirements.