The Segmentation Cycle: A Practical Approach To Network Security
Cisco, December 11,2025
In today's landscape, organizations of all sizes are increasingly adopting the default assumption that adversaries may already be persistent within their networks. This pragmatic perspective underscores the critical need and inherent value of an active segmentation program.
Segmentation introduces critical control points, regulating who and what can access the network environment and its applications. It also facilitates the creation of artifacts essential for reporting and compliance validation. Furthermore, segmentation significantly restricts the 'blast radius' of an incident, greatly aiding incident response by clarifying the 'who, what, and how' of an attack.