Network Access Control (NAC) is a security technology that allows organizations to set policies for controlling devices that attempt to access network. NAC makes certain that devices connected to the network are authorized and adhere to policy, no matter if they connect via wired, wireless, or VPN. Before allowing access, it performs a security compliance evaluation of the device, including antivirus, system updates, and configuration. These checks help to minimize exposure to breaches and make it easier for companies to pull in a safer and more secure network.
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