Definition
Network Segmentation is the practice of dividing a computer network into smaller subnetworks to improve security by limiting lateral movement, containing breaches, and controlling traffic flow between segments.
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Related Terms
Zero Trust
Zero Trust is a security framework that requires all users, devices, and applications to be verified, authenticated, and continuously validated before being granted access to resources, regardless of whether they are inside or outside the network perimeter.
Firewall
A firewall is a network security device or software that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It establishes a barrier between trusted internal networks and untrusted external networks such as the internet.
DMZ (Demilitarized Zone)
A DMZ (Demilitarized Zone) is a network segment that acts as a buffer zone between an organization's internal network and untrusted external networks, hosting public-facing services while protecting the internal network.
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