2026 on microsegment.io

Introducing the Blast Radius Calculator

Tue, 07 Apr 2026 00:00:00 +0000

Why Blast Radius Matters

When an attacker compromises a single workload, the real question isn’t if they can move laterally – it’s how far they can go. In a flat network with no segmentation, the answer is: everywhere. Every reachable host becomes a stepping stone toward high-value assets like domain controllers, databases, ERP systems, and backup servers.

Blast radius is the total number of workloads, services, and data stores an attacker can reach from an initial point of compromise. It’s the single most important metric for understanding the actual impact of a breach – and the one most organizations can’t quantify.

Weekly Security Landscape: March 28 - April 3, 2026

Fri, 03 Apr 2026 00:00:00 +0000

The Week at a Glance

This was the week supply chain attacks went industrial, management plane vulnerabilities kept stacking up, and AI proved it can write kernel exploits faster than most organizations can triage a CVE. Here’s what happened - and what it means for your architecture.

🔴 Critical: TeamPCP Supply Chain Campaign Expands

The biggest story of the month continued to grow. TeamPCP’s supply chain attack, which started with compromising Aqua Security’s Trivy vulnerability scanner via GitHub Actions, expanded to hit LiteLLM (95 million PyPI downloads/month), Checkmarx KICS, and the Axios npm package (100 million weekly downloads).