Page 79 - Cyber Defense eMagazine September 2025

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That is the important point—the one that underscores why Zero Trust is still relevant today. By
segmenting different areas of the network and constantly challenging visitors to validate their credentials,
organizations can effectively reduce the blast radius of an incident. This requires close collaboration
between security teams and network/systems/identity architects, who can work together to analyze and
quantify incident “blast zones” for potential business-impacting threats and apply threat modeling
principles to determine trust boundaries. This will enable organizations to design better network, data,
and access boundaries across different trust zones according to the potential impact of a security. By
applying those principles across COTS, developed, and deployed architectures, they can make it harder
for attackers to get in—and harder for data to get out.

Zero Trust Remains as Relevant as Ever

While risk is ever evolving, the foundational elements of security and mitigating threats are tried and true.
Prisons aren’t new—they have existed in some form for thousands of years. Admittedly, some need to
modernize—but the security principles upon which they are built have not changed much over time. The
importance of protection and emphasis on limiting surprises has never wavered, and even the most
progressive and permissive prisons have multiple layers of security and authentication. Those are
lessons that security teams and digital architects should take to heart. Embracing Zero Trust principles
remains one of the most effective ways to limit risk in today’s digital threat landscape.

About the Author

As CISO of LogicGate, Nicholas Kathmann brings a strong track record of
delivering innovative security solutions for small to medium-sized businesses
and Fortune 100 enterprises. He is an accomplished Chief Information
Security Officer with over 20 years of extensive experience in IT and
cybersecurity, specializing in application architecture and security
management. Nick can be reached online at LinkedIn and at
https://www.logicgate.com/

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