Database security is a critical component of modern application development and deployment, as data breaches become increasingly sophisticated. Securing databases effectively requires a layered approach that includes contextual and dynamic measures to adapt to evolving threats. This guide explores database security strategies, policies, and postures, introducing Fauna's advanced security capabilities that offer multi-layered and interlocking security to secure data at the database level. Fauna ensures robust protection against unauthorized access and data breaches by implementing robust encryption, access controls, and activity monitoring directly within the database. The guide also emphasizes the importance of continuous monitoring, incident response planning, and user education and training in maintaining a comprehensive security posture.