Zero Trust Network Accessor ZTNA is a security architecture and set of principles that are designed to provide secure access to network resources, regardless of where the user or device is located. The basic idea behind ZTNA is to adopt a "never trust, always verify" approach to network access, in which every access request is verified and authenticated before granting access.
In a traditional network security architecture, once a device or user is inside the network perimeter, they are generally trusted to access any resources that they are authorized to use. With ZTNA, however, every access request is verified and authenticated, regardless of whether the device or user is inside or outside the network perimeter. This helps to reduce the risk of unauthorized access and helps to prevent attacks that exploit vulnerabilities in the network infrastructure.
There are several key components to a ZTNA architecture, including:
Overall, the goal of ZTNA is to provide secure access to network resources while minimizing the risk of unauthorized access and attacks.