The concept of trust in enterprise networks has become obsolete due to the shift towards cloud computing and remote work. The Zero Trust framework aims to mitigate data breaches by verifying users' identities, locations, devices, and operations before allowing access to resources. Identity Providers (IdPs) play a crucial role in this approach, providing a single source of truth for user identity management. IdPs are necessary for efficient verification of user claims and determination of access rights. They enable granular permissions to specific segments of the network, ensuring users have only the necessary access. A well-configured IdP is essential for implementing Zero Trust successfully, as it provides the foundation for a reliable and secure infrastructure.