Network Access Control Definition & Meaning
access control is a comprehensive approach to securing all of the places in a network that users can enter. Network access control (or NAC) focuses on managing users' access to a company's private network to prevent attackers from reaching sensitive . A few methods of managing network access include:
—as teams shift to remote work and employees connect to more devices, endpoint technology becomes more challenging to manage. Companies should set policies for having on company devices and perhaps implement a for just work devices if the employee has other unsecured devices in their home. Attackers can access a company network through a smart device that's connected to another device on the network.
Requiring — policies are one of the best methods of controlling users' network access. When logging into company accounts that contain important data, employees should provide verification.
Using private or connections—public Wi-Fi is unacceptable for accessing a business network; attackers can easily eavesdrop and hack an session. Employees should be required to use a private Wi-Fi connection at the very least.
Implementing network access control
Network access control involves a thorough analysis of each company access point. Organizations must be proactive and prepare for attacks, setting precautions based on the existing in the network. An organization might also implement and in company platforms to detect a and respond accordingly. Company (BYOD) policies help businesses mitigate some of the risk of connecting personal devices to the company network.
A approach to network security is one of the best ways a company can control network access: it requires authentication for multiple segments of the network, not just initial entry. This reduces the risk of an attacker breaching the of the network and then having access to everything within it. If every account and application requires credentials, too, then an attacker's access to sensitive information is reduced.
Network access control is best for:
- Large organizations with many employees and devices
- Companies with a large number of remote workers; endpoints spread over distances need to be monitored
- Businesses that handle a lot of sensitive information; implementing NAC may help them meet regulations such as and
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