Enterprises moving away from legacy VPNs are adopting Zero Trust Network Access (ZTNA) to secure users, data, and applications in a perimeter-less world. Traditional VPNs expose entire networks once access is granted, creating high risk from stolen credentials and lateral movement. A modern ZTNA approach enforces identity, device posture, and application-level access with continuous verification and inline security. Built on a unified SASE architecture, Versa Networks integrates connectivity and advanced threat prevention in a single pass. This model improves security posture, simplifies operations, scales elastically, and delivers consistent performance for hybrid, cloud, and remote work environments.