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Description

Microsoft Defender for Azure Cosmos DB scans all incoming network requests for threats to your Azure Cosmos DB resources.

Rationale

In scanning Azure Cosmos DB requests within a subscription, requests are compared to a heuristic list of potential security threats. These threats could be a result of a security breach within your services, thus scanning for them could prevent a potential security threat from being introduced.

Impact

Enabling Microsoft Defender for Azure Cosmos DB requires enabling Microsoft Defender for your subscription. Both will incur additional charges.

Audit

This policy flags an Azure Subscription as INCOMPLIANT if the related Azure Defender Plan for Cosmos DBs has its Pricing Tier set to Free.

A Subscription is also marked as INCOMPLIANT if the Defender Plan for Cosmos DBs does not exist in the CMDB.

Default Value

By default, Microsoft Defender for Azure Cosmos DB is not enabled.

References

  1. https://azure.microsoft.com/en-us/pricing/details/defender-for-cloud/
  2. https://docs.microsoft.com/en-us/azure/defender-for-cloud/enable-enhanced-security
  3. https://docs.microsoft.com/en-us/azure/defender-for-cloud/alerts-overview
  4. https://docs.microsoft.com/en-us/security/benchmark/azure/baselines/cosmos-db-security-baseline
  5. https://docs.microsoft.com/en-us/azure/defender-for-cloud/quickstart-enable-database-protections
  6. https://learn.microsoft.com/en-us/security/benchmark/azure/mcsb-logging-threat-detection#lt-1-enable-threat-detection-capabilities