ne of the most consistent findings in cloud breach post-mortems is the same root cause: a compromised resource had far more network access than it needed. This session addresses that gap directly, focused on practical, implementable segmentation strategies for multi-tier applications.

We start with the "why" — explaining the blast radius concept and how flat networks amplify the impact of a single compromised resource. From there, we build up segmentation patterns layer by layer: using Network Security Groups for baseline traffic control, Application Security Groups for logical grouping that scales better than IP-based rules, and Azure Firewall Policies for centralized, auditable cross-segment traffic control.

Using a representative 3-tier application (web, application, and data layers), we'll design and implement segmentation live — isolating each tier so that a compromise in the web layer cannot directly reach the data layer. We'll test the enforcement in real time, showing blocked and allowed traffic paths. Attendees leave with a segmentation design checklist applicable to their own application architectures, regardless of specific tech stack.