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Azure security baseline for Azure Lighthouse

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This security baseline applies guidance from the Microsoft cloud security benchmark version 1.0 to Azure Lighthouse. The Microsoft cloud security benchmark provides recommendations on how you can secure your cloud solutions on Azure. The content is grouped by the security controls defined by the Microsoft cloud security benchmark and the related guidance applicable to Azure Lighthouse.

You can monitor this security baseline and its recommendations using Microsoft Defender for Cloud. Azure Policy definitions will be listed in the Regulatory Compliance section of the Microsoft Defender for Cloud portal page.

When a feature has relevant Azure Policy Definitions, they are listed in this baseline to help you measure compliance with the Microsoft cloud security benchmark controls and recommendations. Some recommendations may require a paid Microsoft Defender plan to enable certain security scenarios.

Note

Features not applicable to Azure Lighthouse have been excluded. To see how Azure Lighthouse completely maps to the Microsoft cloud security benchmark, see the full Azure Lighthouse security baseline mapping file.

Security profile

The security profile summarizes high-impact behaviors of Azure Lighthouse, which may result in increased security considerations.

Service Behavior Attribute Value
Product Category MGMT/Governance
Customer can access HOST / OS No Access
Service can be deployed into customer's virtual network False
Stores customer content at rest True

Data protection

For more information, see the Microsoft cloud security benchmark: Data protection.

DP-3: Encrypt sensitive data in transit

Features

Data in Transit Encryption

Description: Service supports data in-transit encryption for data plane. Learn more.

Supported Enabled By Default Configuration Responsibility
True True Microsoft

Feature notes: Azure Lighthouse leverages Microsoft's default encryption of data in transit.

Configuration Guidance: No additional configurations are required as this is enabled on a default deployment.

Reference: Double encryption

DP-4: Enable data at rest encryption by default

Features

Data at Rest Encryption Using Platform Keys

Description: Data at-rest encryption using platform keys is supported, any customer content at rest is encrypted with these Microsoft managed keys. Learn more.

Supported Enabled By Default Configuration Responsibility
True True Microsoft

Feature notes: Azure Lighthouse leverages Microsoft's default encryption of data at rest.

Configuration Guidance: No additional configurations are required as this is enabled on a default deployment.

Reference: Double encryption

DP-5: Use customer-managed key option in data at rest encryption when required

Features

Data at Rest Encryption Using CMK

Description: Data at-rest encryption using customer-managed keys is supported for customer content stored by the service. Learn more.

Supported Enabled By Default Configuration Responsibility
False Not Applicable Not Applicable

Configuration Guidance: This feature is not supported to secure this service.

Asset management

For more information, see the Microsoft cloud security benchmark: Asset management.

AM-2: Use only approved services

Features

Azure Policy Support

Description: Service configurations can be monitored and enforced via Azure Policy. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Configuration Guidance: Use Microsoft Defender for Cloud to configure Azure Policy to audit and enforce configurations of your Azure resources. Use Azure Monitor to create alerts when there is a configuration deviation detected on the resources. Use Azure Policy [deny] and [deploy if not exists] effects to enforce secure configuration across Azure resources.

Reference: Azure Lighthouse built-in policy definitions

Logging and threat detection

For more information, see the Microsoft cloud security benchmark: Logging and threat detection.

LT-4: Enable logging for security investigation

Features

Azure Resource Logs

Description: Service produces resource logs that can provide enhanced service-specific metrics and logging. The customer can configure these resource logs and send them to their own data sink like a storage account or log analytics workspace. Learn more.

Supported Enabled By Default Configuration Responsibility
False Not Applicable Not Applicable

Feature notes: Although Azure Lighthouse does not support resource logs, activity logs are supported.

Customers who have delegated subscriptions for Azure Lighthouse can view Azure Activity log data to see all actions taken. This gives customers full visibility into operations that service providers are performing, along with operations done by users within the customer's own Azure Active Directory (Azure AD) tenant.

Configuration Guidance: This feature is not supported to secure this service.

Next steps