Explore essential database security concepts in this 27-minute lesson from an MTA Database course. Learn about security principles, simplified security models, and server-level security measures. Dive into fixed server roles, SQL Server security, and Windows authentication using T-SQL commands. Understand SQL Server user authentication processes, methods for granting database access, fixed database roles, and object permissions. Practice granting object permissions through hands-on examples to reinforce your understanding of database security fundamentals.