As digitization expands across the world, information security is becoming an ever more important issue. In particular, security requirements are becoming more fragmented and complex to suit increasingly diverse devices and network environments. In response, the zero trust model is now entering the spotlight. Understanding what zero trust means and what are the components of zero trust model is an extremely important skill because it will help you build a next-generation security strategy. This article describes the concept of zero trust, its components, and requirements for the next-generation zero trust model that overseas offices will require in the future.