Zero Trust Network Access (ZTNA) is a modern approach to network security and access control that assumes every user, device, or network may already be compromised. It eliminates the traditional network-centric perspective of securing a fixed network perimeter and instead adopts a network-agnostic perspective that defends each resource at the network edge. ZTNA transforms network access control to address the evolving threat landscape and modern workforces. The framework can be distilled into several guiding principles: assume breach, verify explicitly, least privilege, and monitor everything. ZTNA is driven by industry trends such as fading perimeters, changing workforces, device and network diversity, and cybercrime, which are breaking traditional technologies and pushing government and industry to adopt ZTNA. The benefits of ZTNA include a minimized attack surface, controlled blast radius, more granular control, unified management, lower infrastructure costs, improved network performance, and improved user experience. ZTNA can be implemented using various approaches and implementations, including securing private resources, cloud resources, third-party risk, and replacing obsolete access systems. The implementation process requires no changes to the network infrastructure, and Twingate offers a simple path with its software solution that can benefit an organization in as little as 15 minutes. ZTNA's modern approach to secure access is becoming increasingly popular among organizations due to its benefits and simplicity.