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What is Network Access Control?

Network access control (NAC) is an approach to network security that implements preventive measures to ensure only users with the proper authorization access network resources. Only authorized users can access the network and its resources, while unauthorized users are blocked.

An enterprise security solution known as network access control is used to evaluate, monitor, enforce, and optimize security. And also authentic rules through various techniques such as endpoint security, user access authentication, and network security policies.

Fundamentally, network access control aims to create a security fortress impenetrable to unauthorized users, device activities, and network-based threats. Network access control verified that all traffic flowing through was legitimate and maintained computer and network security. The NAC system provides a comprehensive security solution that can be used to protect both wired and wireless networks.

Network access control is used to protect network resources’ confidentiality, integrity, and availability. It is essential to have a secure network to ensure that all users have the same level of access to the resources they need. With NAC, organizations can ensure that only users with the proper authorization can access the network and its resources.

Network access control is typically implemented by hardware, software, and policies. The hardware component involves physical devices such as routers and switches that are used to control access to the network. 

The software component involves a set of rules and policies to control user access. The policies may include authentication methods, user privileges, and access restrictions.

But, with the rise of the internet of things (IoT), many linked endpoints, software-as-a-service (SaaS) applications, and personal devices that double as professional devices, network access control has taken on a much broader and more significant role.

According to a Nexkey 2020 survey, 44% of respondents stated that access control was more important after the outbreak than ever. Gartner announced the same year that it would begin reporting on network access control as part of its projection and measuring revenue share by a vendor in its Gartner Market Share reports. This suggests that network access control is on its way to becoming a corporate standard.

The primary benefit of network access control is providing an extra layer of security. It ensures that only authorized users access the network and its resources. It will prevent unauthorized users from accessing the network and its resources.

NAC can also be used to enforce policies and ensure compliance with regulations. By setting up NAC, organizations can ensure that users only access resources they are authorized to use. This helps to reduce the risk of data breaches and other security issues.

NAC can also provide visibility into the network. By monitoring user activity, organizations can identify potential security threats and take steps to protect the network. It can help organizations identify and address security issues before they become a problem.

Finally, NAC can help to improve the efficiency of the network. Organizations can reduce the bandwidth wasted on unnecessary traffic by limiting user access to only the resources they need. This can improve the network’s performance and ensure that users have the resources they need when needed.

Some of the advantages of Network Access Control are below:

Network visibility: Because of the proliferation of devices and people, total network visibility is difficult. This problem is solved by mapping every device that connects to a network and setting regulations that cover every authorized user.

Improved cybersecurity: The threat posed by cyberattacks is growing all the time. These dangers are mitigated by eliminating unauthorized or suspect actors and limiting what individuals can do to gain network access.

Also Read: Benefits of Computer Networking

More effective compliance: Authorities are growing stringent about how corporations

Protect client information, particularly payment and personal information. This challenge can be overcome by implementing gold-standard security compliance across all network endpoints.

Network access control is an integral part of any network security solution. It provides an extra layer of security and make sure that only authorized ones have access to the network and its resources. It also helps to improve the efficiency of the network by limiting user access to only the resources they need. By implementing NAC, organizations can ensure their network is secure and compliant with regulations.

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