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Network Segmentation Basics
Limit blast radius
Network segmentation creates zones (by sensitivity or function), enforces access rules between them, and monitors traffic to contain incidents and reduce congestion.
- network segmentation
- zones
- firewalls
- lateral movement
- access control
Design Zones
Group assets by sensitivity/function; define allowed flows.
Enforce
Use firewalls/ACLs/microsegmentation to restrict traffic.
Monitor
Log inter-zone traffic; adjust when apps or risks change.
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