What is the role of a Network Access Control (NAC)?

The role of a Network Access Control (NAC) system fundamentally revolves around enforcing security policies on devices that are attempting to access a network. NAC solutions help organizations ensure that only compliant devices—those meeting specified security criteria—can connect to the network. This means that before a device is allowed access, it undergoes an assessment that checks for certain attributes, such as anti-virus software presence, operating system patch levels, and other security configurations.

By implementing NAC, organizations can mitigate risks associated with unauthorized access and potential security breaches. This proactive measure contributes to a more secure network environment by preventing non-compliant or potentially harmful devices from connecting, thereby safeguarding the network against vulnerabilities and threats that could be exploited by such devices.