VLAN: Virtual Local Area Network in Cybersecurity
Two syllables; not 'V-L-A-N'.
VLAN stands for Virtual Local Area Network. A VLAN segments a physical network into isolated logical networks at the data link layer. It controls broadcast domains and restricts traffic between groups of devices.
How VLAN Is Used in Cybersecurity
Cybersecurity architects design VLAN segmentation to isolate sensitive systems and limit lateral movement during a breach. SOC analysts investigate VLAN-hopping attacks that bypass network segmentation. Security engineers configure VLAN access control lists to enforce least-privilege network policies.
Read the full glossary entry: VLAN in Cybersecurity
Cybersecurity Roles That Work with VLAN
Related Cybersecurity Acronyms
Frequently asked questions
What does VLAN stand for?
VLAN stands for Virtual Local Area Network. A VLAN segments a physical network into isolated logical networks at the data link layer. It controls broadcast domains and restricts traffic between groups of devices.
What is VLAN used for in cybersecurity?
Cybersecurity architects design VLAN segmentation to isolate sensitive systems and limit lateral movement during a breach. SOC analysts investigate VLAN-hopping attacks that bypass network segmentation. Security engineers configure VLAN access control lists to enforce least-privilege network policies.
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