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To ensure data security when using the Microsoft Synapse SAP connector and azure linked services, particularly in scenarios involving on-premises SAP systems, consider the following best practices:
- Secure Connectivity
- Private Link: Use azure private link to establish secure connections between Synapse and Azure Linked Services. This ensures traffic stays within Azure’s backbone network.
- Hybrid Connectivity: Leverage Azure ExpressRoute or a VPN gateway for secure, encrypted communication between on-premises SAP systems and Azure.
- Data Encryption
- In Transit: Enable TLS 1.2 or higher to encrypt data in transit between the on-premises SAP system and Synapse.
- At Rest: Use Azure Storage Service Encryption to secure data at rest in Synapse or azure data lake.
- Authentication and Access Management
- Azure Active Directory (AAD): Use AAD to enforce RBAC for accessing synapse and other linked services.
- Managed Identities: Utilize managed identities for authentication instead of static credentials for seamless and secure authentication to SAP systems and other Azure services.
- SAP-Specific Credentials: Rotate SAP credentials regularly and store them securely in Azure KeyVault.
- Data Masking and Classification
- Dynamic Data Masking: Apply dynamic data masking in Synapse to protect sensitive data from unauthorized access during query execution.
- Data Classification: Use the Synapse Data Classification feature to label and monitor sensitive data, ensuring compliance with regulatory standards.
- Audit and Monitor Access
- Azure Monitor and Synapse Workspace Logs: Enable detailed logging for Synapse to track access and actions on linked data.
- SAP System Logs: Integrate SAP system logs into Azure Monitor to detect and respond to anomalies.
- Firewall and Network Security
- IP Restrictions: Configure IP restrictions on the Synapse workspace to allow access only from trusted IP ranges or networks.
- Network Security Groups (NSGs): Apply NSGs to restrict network traffic to and from Azure resources involved in the SAP connector setup.
- Data Exfiltration Protection
- Azure Data Exfiltration Policy: Use exfiltration prevention measures in Synapse to ensure data cannot be sent to unauthorized locations or services.
- Outbound Rules: Monitor and restrict outbound traffic from the Synapse environment to prevent unintended data leaks.
- Configuration Best Practices
- SAP Connector Configuration: Ensure that the SAP connector uses the latest version to benefit from the latest security updates and features.
- Service Isolation: Use separate linked services and dedicated integration runtimes for different workloads to minimize the blast radius of potential security incidents.
- Regular Security Reviews
- Conduct periodic reviews of:
- Access policies in Synapse and Azure Linked Services.
- SAP system user permissions and their integration with Azure services.
- Security configuration of the Synapse SAP connector.
- SAP system user permissions and their integration with Azure services.
- Access policies in Synapse and Azure Linked Services.
- Compliance and Governance
- Align your Synapse and SAP integration with industry and organizational compliance standards (GDPR, HIPAA).
- Leverage Azure Policy to enforce compliance at the organizational level for Synapse and linked services.
By implementing these best practices, your client can mitigate data security risks and ensure a robust integration between their SAP systems and synapse.
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