---
title: Jericho's Cybersecurity Glossary | Network Access Control
description: Network Access Control (NAC) is a security solution that restricts unauthorized devices from accessing a network by enforcing security policies, such as verifying user credentials and device health.
---

[Jericho Security | Glossary](http://www.jerichosecurity.com/glossary)

# [Jericho's Cybersecurity Glossary | Network Access Control](http://www.jerichosecurity.com/glossary/network-access-control)

 Written by [Jericho Security Team](http://www.jerichosecurity.com/glossary/author/jericho-security-team) | September 28, 2024

#### *Definition:*

Network Access Control (NAC) is a security solution that restricts unauthorized devices from accessing a network by enforcing security policies, such as verifying user credentials and device health.

#### *Use Cases:*

- Used by organizations to ensure that only authorized devices and users can connect to their internal networks.
- Employed to enforce compliance with security policies, such as requiring up-to-date antivirus software on all connected devices.

#### *Related Terms:*

- Access Control
- [Authentication](https://www.jerichosecurity.com/glossary/authentication)
- [Endpoint Security](https://www.jerichosecurity.com/glossary/endpoint-security)
- [Virtual Private Network (VPN)](https://www.jerichosecurity.com/glossary/virtual-private-network)

#### *Questions and Answers:*

- **How does NAC improve network security?**NAC improves security by enforcing strict access controls, ensuring that only authenticated users and secure devices can access the network.
- **What are the key features of a NAC system?**Key features include identity verification, device health checks, and policy enforcement for users and devices accessing the network.
- **How is NAC used in compliance?**NAC helps organizations meet compliance standards by ensuring that all devices connected to the network meet specific security requirements, such as patching and antivirus updates.

[View full post](http://www.jerichosecurity.com/glossary/network-access-control)

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