Zoning

Zoning is a cybersecurity practice that involves the strategic segmentation of a network or system into distinct, logically or physically separated security domains known as 'zones.' Each zone is governed by differentiated security policies based on its trust level, function, or data sensitivity. By isolating critical assets and controlling traffic flow between zones through firewalls, access controls, and monitoring protocols, organizations significantly reduce their overall attack surface and limit the potential blast radius of a security incident.

This architectural approach creates robust barriers that impede lateral movement by unauthorized entities, effectively containing threats within specific areas and preventing widespread compromise across the entire infrastructure. Zoning is a foundational element of comprehensive risk management and threat intelligence strategies, enabling organizations to apply security measures proportionate to the inherent risks of each network segment, streamline vulnerability management, and strengthen overall cyber resilience.