Summary
In this module, you configured four platform-level security layers for Azure SQL Database and SQL Managed Instance. You implemented Microsoft Entra ID–only authentication and disabled legacy SQL authentication. You isolated database access through private endpoints and disabled public network access. You configured Transparent Data Encryption with customer-managed keys in Azure Key Vault, enforced Transport Layer Security (TLS) 1.2 for connections, and explored Always Encrypted for protecting sensitive data from privileged users. Finally, you applied dynamic data masking to redact sensitive fields and configured row-level security to enforce division-based data isolation.
Together, these controls establish a defense-in-depth foundation for your Azure SQL environment.