Zero Trust Network Access (ZTNA) is a future of network security that is being adopted by organizations to replace traditional VPNs. ZTNA is based on three core principles: assume breach, verify explicitly, and least privilege. It creates direct connections between users and resources, regardless of location or network type. ZTNA has several benefits, including unified access control, securing development environments, universal multi-factor authentication, and improved security through granular role-based access controls. However, it also presents challenges such as building a case for adoption, learning to manage identities, and addressing implementation gaps. Additionally, ZTNA introduces new risks, including single point of failure, breaches of servers or devices, and compromised privileged credentials. To successfully adopt ZTNA, organizations must carefully plan their migration project, choose the right vendor, and address these challenges and risks.