What is the role of Network Access Control (NAC) in enterprise networks?

The role of Network Access Control (NAC) in enterprise networks is primarily focused on enforcing security policies for device access. NAC systems help organizations manage who and what can access the network by implementing authentication and authorization processes based on predefined security policies. This ensures that only compliant and authenticated devices are permitted to connect to network resources, thus minimizing potential security risks.

Furthermore, NAC can assess the security posture of devices attempting to connect, such as checking for antivirus updates or compliance with security standards before granting access. This proactive approach helps to prevent unauthorized access and reduces the likelihood of security breaches, which is crucial for maintaining the integrity and security of enterprise networks.