
NAC (Network Access Control)
Network Access Control (NAC) is a security process that ensures only authorized devices and users can access a network. It verifies device compliance, such as security updates and antivirus status, before granting access. Think of it as a security checkpoint that checks credentials and safety standards, helping prevent malware and unauthorized users from entering the network. NAC maintains a secure environment by automatically enforcing security policies, ensuring the network remains protected while allowing legitimate users seamless access.