NAC Solutions from Portnox

Network Access Control (NAC) is a cybersecurity solution that authenticates and authorizes users and devices before granting network access. NAC ensures only compliant endpoints connect, helping organizations enforce security policies, improve visibility, and protect sensitive resources from unauthorized access.

NAC solutions support Zero Trust security by continuously verifying every user and device before allowing network access. They enforce strict authentication and compliance checks, ensuring only authorized, secure, and policy-compliant endpoints can connect to business systems, applications, and critical data.

NAC solutions secure IoT and unmanaged devices by providing agentless visibility and policy enforcement. These tools ensure all devices, regardless of type or ownership, meet security requirements before accessing the network, reducing risks from shadow IT, rogue endpoints, and vulnerable smart devices.

The difference between NAC and ZTNA lies in scope: NAC manages device-level access to networks, while ZTNA secures application-level access for users. Combined, they create a layered zero trust security model that protects both networks and business applications from unauthorized activity.

Cloud-native NAC reduces IT overhead by eliminating on-site appliances, manual updates, and complex maintenance. Unlike legacy systems such as Cisco ISE or Aruba ClearPass, Portnox Cloud automates continuous access control, lowers total cost of ownership, and scales effortlessly across distributed, hybrid environments.