Enterprises are seeking real-time data and analytics solutions to stay competitive in fast-evolving markets, with companies handling private information often facing security constraints. SingleStoreDB Self-Managed 5.1 introduces Role-Based Access Control (RBAC), allowing companies to manage access to sensitive data more efficiently. This feature enables organizations to create custom roles for different users, such as Security Officers and Cluster Administrators, while ensuring secure data protection. The RBAC feature has been extensively tested with rigorous performance tests, validating its ability to handle large numbers of roles and groups without compromising query performance.