• AWS HIPAA Compliance: Proper architecture with Kinesis, Lambda, and S3 achieves full HIPAA compliance through encryption, access controls, and audit logging
• Security Layers: Defense-in-depth approach with KMS encryption, VPC isolation, IAM policies, and CloudTrail logging
• BAA Requirements: Business Associate Agreement with AWS covers PHI storage and processing in compliant services
• Cost Optimization: Serverless architecture reduces costs by 60% compared to traditional infrastructure while maintaining compliance
• Production Ready: Includes monitoring, alerting, disaster recovery, and compliance validation

Building a healthcare data pipeline that handles Protected Health Information (PHI) requires strict adherence to HIPAA regulations, robust security measures, and comprehensive audit logging. AWS provides a powerful suite of services that can achieve HIPAA compliance when properly architected.

This comprehensive guide will walk you through building a production-ready, HIPAA-compliant health data pipeline using AWS serverless services. We'll cover security architecture, data encryption, access controls, audit logging, monitoring, and compliance validation—everything needed to handle healthcare data safely and legally.

AWS Services with BAA Coverage:

Amazon Web Services offers a BAA for: S3, DynamoDB, Kinesis, Lambda, CloudWatch, CloudTrail, SNS, SQS, KMS, and VPC when properly configured.

```mermaid graph TB A[Health Data Sources] -->|Encrypted TLS| B[Amazon Kinesis Data Streams] B -->|Real-time Processing| C[AWS Lambda Functions] C -->|PHI Processing| D[VPC Isolated Environment] C -->|Validate & Transform| E[AWS Lambda] E -->|Encrypted Storage| F[Amazon S3] E -->|Query Access| G[Amazon DynamoDB] ```

Terraform Configuration

See main Terraform code examples for:

• KMS key management for encryption
• VPC setup for network isolation
• S3 buckets with proper encryption and policies
• Lambda functions in private subnets
• Kinesis data streams for real-time processing

Security Best Practices

1. Encryption at Rest: All data encrypted with AWS KMS
2. Encryption in Transit: TLS 1.3 for all data transfer
3. Access Control: IAM policies following least privilege
4. Audit Logging: CloudTrail for all API calls
5. Network Isolation: VPC with private subnets
6. Monitoring: CloudWatch alarms and alerting

Lambda Function Example

```python def lambda_handler(event, context): """Process PHI records from Kinesis""" for record in event['Records']:

Decrypt data

decrypted_data = decrypt_data(record['kinesis']['data'])

Process (no PHI in logs!)

processed = process_phi(decrypted_data)

Store encrypted

store_in_s3(processed) ```

Automated Checks

1. S3 bucket public access blocked
2. Encryption enabled for all data
3. CloudTrail logging active
4. VPC using proper tenancy
5. IAM policies follow least privilege

AWS Security Hub

Enable AWS Security Hub for continuous compliance monitoring with HIPAA and PCI DSS standards.

Building a HIPAA-compliant pipeline on AWS requires careful attention to encryption, access controls, and audit logging. The serverless architecture provides scalability and cost-effectiveness while meeting HIPAA requirements.

• AWS HIPAA Compliance
• AWS BAA Eligible Services

Q: Do I need a BAA with AWS for all regions? A: Yes, the AWS BAA covers all regions where you use HIPAA-eligible services.

Q: How long must I retain PHI logs? A: HIPAA requires 6 years from creation.

Q: Can I use CloudWatch Logs for PHI data? A: No! Never log PHI. Use CloudWatch only for operational metrics.

Q: What's the difference between encryption in transit and at rest? A: Encryption in transit protects data moving between services. Encryption at rest protects stored data. HIPAA requires both.