Legacy network solutions like traditional VPNs and perimeter-based security models struggle to provide visibility and control over increasingly complex remote and hybrid environments, creating blind spots that lead to limited internal visibility, difficulty in managing complex environments, and inadequate risk assessment. In contrast, Zero Trust Network Access (ZTNA) addresses these challenges by abandoning outdated trust assumptions and operating on the principle that verification is required from anyone and anything trying to access resources in the network, providing granular visibility and control, seamless management across diverse IT ecosystems, and proactive risk management. ZTNA offers a more secure, manageable, and adaptable solution for today's complex digital environments, enabling organizations to rapidly implement modern Zero Trust networks that are more secure and maintainable than VPNs.