SingleStoreDB supports fine-grained access control through its Role Based Access Control (RBAC) mechanism, which ensures that users have only the necessary privileges to access database objects. The system also includes Row-Level Security (RLS), a feature that allows administrators to restrict access to specific rows within tables based on user roles. This enables organizations to balance security and governance while scaling their applications. RLS provides additional benefits such as ease of use, change management, and scalability, making it an attractive solution for multi-tenant applications where data from different users needs to be stored in a common table definition. By using SingleStoreDB's RLS feature, organizations can ensure that sensitive data is only accessible to authorized users.