Introduction
In today's digital landscape, where security and accessibility are paramount, businesses must navigate the delicate balance between protecting their systems and providing seamless user experiences. One key tool in this endeavor is the use of sequence diagrams, which offer a powerful way to visualize and understand complex business processes. In this article, we will explore the application of sequence diagrams in the context of two-factor authentication (2FA), a widely adopted security measure that enhances the integrity of user authentication.