Zero Trust network access and microsegmentation design for UK SMEs

This article provides practical guidance for UK SMEs on designing and implementing Zero Trust Network Access (ZTNA) and microsegmentation to reduce lateral movement and limit blast radius from compromises; it covers trust and traffic modelling, design principles (least privilege, default deny, path separation), pilot approaches, policy management, operational validation, common pitfalls, and a pragmatic 90-day starter roadmap.