As organizations grapple with the escalation of data breaches and sophisticated cyber threats, ensuring robust and adaptive data access control has become a top priority. Traditional perimeter-centric security frameworks, once the backbone of enterprise protections, have increasingly shown limitations against evolving adversarial tactics. In response, Zero-Trust Architecture (ZTA) has emerged as a dynamic paradigm, rejecting implicit trust and demanding continuous verification of every access request. This article introduces FastMonitor, a data-access control solution designed to operationalize ZTA principles to their full potential. Introduced in June 2022, FastMonitor rigorously authenticates and authorizes each data access request, consolidating granular policies, comprehensive audit trails, and real-time monitoring into a single coherent system. By bridging theoretical concepts of ZTA with practical enforcement mechanisms, FastMonitor significantly mitigates unauthorized access, supports compliance with stringent regulatory frameworks, and strengthens organizational resilience. This study elucidates the architectural design of FastMonitor, demonstrates its capacity to enhance security in sectors as diverse as healthcare and automotive, and examines its role in fostering greater national cybersecurity readiness.