# Cloud Security Baseline for Azure AI Document Intelligence

#### 1. Identity and Access Management

**a. Azure Active Directory (AAD) Integration**

* Ensure all users and applications authenticate using Azure Active Directory.
* Enforce Multi-Factor Authentication (MFA) for all users.
* Utilize role-based access control (RBAC) to assign permissions. Use least privilege principle.

**b. Service Principal and Managed Identities**

* Use service principals for application authentication.
* Utilize managed identities for Azure resources to avoid hardcoding credentials.

#### 2. Network Security

**a. Network Isolation**

* Deploy Azure AI Document Intelligence within a virtual network (VNet).
* Use Network Security Groups (NSGs) to control inbound and outbound traffic to resources.

**b. Private Endpoints**

* Use Private Link to enable access to Azure AI Document Intelligence over a private endpoint in your VNet.

#### 3. Data Security

**a. Data Encryption**

* Ensure data at rest is encrypted using Azure Storage Service Encryption.
* Use HTTPS for data in transit to ensure secure transmission.

**b. Key Management**

* Use Azure Key Vault to manage and store cryptographic keys.
* Rotate keys periodically and configure alerts for key access.

#### 4. Monitoring and Logging

**a. Activity Logs and Metrics**

* Enable Azure Monitor and Application Insights to collect logs and metrics.
* Set up diagnostic logs for resource activity tracking.

**b. Security Alerts**

* Configure Azure Security Center to monitor security configurations and practices.
* Set up alerts for suspicious activities and security recommendations.

#### 5. Compliance and Governance

**a. Compliance Policies**

* Regularly review and comply with industry standards and regulatory requirements.
* Use Azure Policy to enforce compliance policies and standards.

**b. Resource Management**

* Tag resources with appropriate metadata for easier tracking and management.
* Use Azure Blueprints to define and standardize deployments.

#### 6. Incident Response

**a. Security Incident Response**

* Develop and document an incident response plan.
* Use Azure Security Center for centralized management and response to security incidents.

#### 7. Backup and Disaster Recovery

**a. Backup Strategy**

* Implement regular backups for all critical data.
* Use Azure Backup to manage and automate backup processes.

**b. Disaster Recovery Plan**

* Develop and test a disaster recovery plan.
* Utilize Azure Site Recovery to ensure business continuity.

#### Implementation Steps

1. **Initial Setup**
   * Configure Azure Active Directory with necessary roles and policies.
   * Set up VNets, NSGs, and private endpoints.
2. **Data Protection**
   * Enable encryption for data at rest and in transit.
   * Set up Azure Key Vault for key management.
3. **Monitoring and Compliance**
   * Enable Azure Monitor and Application Insights.
   * Configure Azure Security Center and define compliance policies.
4. **Incident and Backup Management**
   * Develop incident response and disaster recovery plans.
   * Implement Azure Backup and Azure Site Recovery.

#### Regular Review and Updates

* Regularly review security configurations and policies.
* Keep up-to-date with Azure updates and security best practices.


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