Since the entire history of building a Network Security information system is associated either with strengthening protection along the perimeter or with organizational and physical protection measures, today it is rare to see a corporate network that is resistant to hacking and attacks from the inside.
Today, no one can imagine any serious organization without workstations equipped with computers connected to a common corporate network. Typically, a corporate network connects to public networks, usually the Internet. Since most of the company’s vital information, including confidential information, is located on the corporate network, a serious question arises as to who can access this information. This can be answered with the help of Network Admission Control.
Without an accurate way of assessing the “health” of a device, even the most trusted user can inadvertently expose the rest of the network to significant risk from the presence of an infected or insufficiently protected device from infections. One good measure of protecting the network is implementing Network Admission Control (NAC).
NAC is a set of technologies and solutions that are based on an industry-wide initiative. NAC uses network infrastructure to enforce security policy across all devices seeking to access network resources. (Read More: Internal Auditing: An Integral Part of the Corporate Culture)
In this way, the damage that emerging security threats can cause is reduced. With NAC, customers can provide network access only to compliant, secure endpoints (such as computers, servers) and restrict access to non-compliant devices.
NAC is a unique technology because it is designed to be integrated into the network infrastructure. Why should policy enforcement and verification strategy be implemented on the network?
Almost every bit of information that is of interest or value to a company is directly or indirectly present on the web.
By implementing network access control, a company can deploy the most comprehensive security solution that covers the maximum number of devices connected to the network.
After NAC is implemented, whenever an endpoint device attempts to connect to the network, the network access device (LAN, WAN, wireless or remote access) automatically requests the endpoint’s security profile, which is issued through the installed client or peer review tools. This profile information is then matched against a network security policy, and the device’s compliance level with these policies determines how the network responds to an access request. The network can simply allow or deny access or restrict access.