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Important
Attention: All Microsoft Defender for Cloud features will be officially retired in Azure in China region on August 18, 2026 per the announcement posted by 21Vianet.
In Microsoft Defender for Cloud, the Defender for Databases plan helps protect your database estate from threats and vulnerabilities. The Defender for Databases plan provides threat protection and security management across cloud environments.
Defender for Databases includes four offerings that relate to database types:
Microsoft Defender for Azure SQL Databases: Offers threat protection for Azure SQL databases by detecting and responding to potential security threats.
Microsoft Defender for SQL Servers on Machines: Offers security for SQL servers running on virtual machines or physical servers. You can also enable it on a Log Analytics workspace for enhanced monitoring and threat detection.
Microsoft Defender for Open-Source Relational Databases: Offers security for open-source relational databases such as PostgreSQL, MySQL, and MariaDB by providing continuous monitoring and threat detection.
Each of these database protection plans is priced separately. For more information, see the Defender for Cloud pricing page. You can also estimate costs with the Defender for Cloud cost calculator.
Key features
Defender for Databases detects anomalous activities that indicate unusual and harmful attempts to access or exploit databases. Defender for Databases offers alerts for suspicious database activities, so you can respond to threats as they happen.
The solution supports a wide range of database types, including:
- Azure database services for PostgreSQL, MySQL, and MariaDB.
Defender for Databases simplifies the process of addressing threats without requiring users to be security experts or manage advanced security monitoring systems. The alerts that Defender for Databases generates are enriched with threat intelligence to provide a seamless security management experience.
Benefits
Defender for Databases continuously monitors database activities and provides real-time alerts to help ensure your data's security. The solution is designed to be easy to use as you manage and respond to security threats.