NAC: Network Access Control in Cybersecurity
NAC stands for Network Access Control. Network access control restricts which devices can connect to a network based on identity, device health, and compliance status. NAC solutions enforce policies at the point of network entry using 802.1X, agents, or agentless profiling.
How NAC Is Used in Cybersecurity
Security engineers deploy NAC to prevent unauthorized devices from joining corporate networks. The system checks device posture (patch level, antivirus status, encryption) before granting access. SOC analysts use NAC logs to identify rogue devices and quarantine non-compliant endpoints.
Read the full glossary entry: Network Access Control in Cybersecurity
Cybersecurity Roles That Work with NAC
Related Cybersecurity Acronyms
Frequently asked questions
What does NAC stand for?
NAC stands for Network Access Control. Network access control restricts which devices can connect to a network based on identity, device health, and compliance status. NAC solutions enforce policies at the point of network entry using 802.1X, agents, or agentless profiling.
What is NAC used for in cybersecurity?
Security engineers deploy NAC to prevent unauthorized devices from joining corporate networks. The system checks device posture (patch level, antivirus status, encryption) before granting access. SOC analysts use NAC logs to identify rogue devices and quarantine non-compliant endpoints.
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.