Episode 142: Zero Trust and Defense in Depth Models

Zero Trust networking flips the traditional perimeter-based security model on its head. In this episode, we unpack the Zero Trust principle of “never trust, always verify,” and explore how it applies to network design. You’ll learn how Zero Trust assumes breach by default and demands continuous authentication, authorization, and monitoring regardless of whether a user or device is internal or external. We explain how technologies like microsegmentation, MFA, and identity-based policies enforce this model.

We also discuss how Zero Trust fits within a broader Defense in Depth (DiD) strategy. Defense in Depth layers multiple security controls—technical, administrative, and physical—to ensure that if one fails, others still protect the network. We examine how firewalls, endpoint security, access controls, and user training work together to form a comprehensive security architecture. This episode provides a strategic framework for designing layered, modern security systems.