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Cybersecurity vocabulary · Network Security

Network segmentation

Meaning in cybersecurity, with examples

nounCommon term

In cybersecurity, network segmentation means: Dividing a network into separate zones, with controlled traffic between them, so that a problem in one part cannot easily spread to the others.

In Turkish: ağ segmentasyonu, ağ bölümlendirme

How it is used

Done with VLANs, firewalls and access lists. Payment systems, industrial control networks and guest Wi-Fi are typically separated from the corporate network. A finer, per-workload version is called microsegmentation; the opposite is a 'flat network'.

Example sentences

  1. Good network segmentation stopped the ransomware from reaching the factory floor.

  2. Network segmentation around the card systems keeps our PCI DSS scope small.

Common collocations

  • segment the network
  • microsegmentation
  • flat network
  • network zone
  • firewallA hardware device or piece of software that checks network traffic and allows or blocks it according to a set of security rules.
  • zero trustA security model that trusts no user or device by default, even inside the company network, and checks identity and context for every request.
  • lateral movementThe way attackers move from the first compromised machine to other systems inside the same network, looking for valuable data or higher privileges.
  • wormMalware that copies itself and spreads from one computer to another across a network without any action from the user.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Network Security

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