Definition
Secure Network Architecture is an approach to designing network infrastructure that provides an appropriate level of protection, resilience and control over communication between its elements.
Human Explanation
A secure network is created through deliberate design of the complete infrastructure, not by continually adding separate controls.
Why it Matters
Appropriate architecture reduces the Attack Surface, makes security easier to manage and improves organisational resilience to Incidents.
Conceptual Boundary
Secure Network Architecture is not one device or product. It combines multiple mechanisms and design principles into one coherent system.
Practical Perspective
A network designed securely from the beginning is easier to protect. Adding controls to chaotic infrastructure usually increases complexity rather than security.