Gardiyan Enterprise Identity Management System is an authentication software that operates on Windows and Linux operating systems. The system replaces the standard authentication login screen with alternative authentication methods. The product supports multiple authentication methods including LDAP, Database, Sima (for Azerbaijan), and E-Government integration. This allows organizations to integrate authentication systems beyond standard Active Directory for Windows login screens. The system features a plugin-based architecture that enables customization through various plugins. Organizations can add two-factor authentication plugins, apply IP restrictions for specific users, or limit access to particular devices. Different authentication rules can be configured based on user groups or departments. The platform provides centralized user access management, allowing system administrators to track user behaviors and manage access controls from a single location. Access protocols can be customized for different groups within the organization. The system is designed for environments where security requirements are a priority, offering alternative security options to meet high-security standards in sectors requiring strict access controls.