About This Architecture

Multi-AZ payment switch architecture with HA failover, PCI DSS compliance, and real-time fraud detection across two AWS availability zones. Traffic flows through CloudFront CDN and WAF-protected ALBs to EC2 Switch Engines, ECS Fraud Detection, and Lambda Transaction Routers in isolated private subnets. RDS MySQL primary-replica, DynamoDB global tables, Aurora audit logs, and KMS encryption ensure data integrity and regulatory compliance, while SageMaker fraud ML, Kinesis streams, and EventBridge compliance events enable real-time risk management. This architecture demonstrates zero-trust security, least-privilege IAM, and automated PCI DSS scanning via Inspector and Config for payment processors handling high-volume merchant transactions. Fork and customize this diagram on Diagrams.so to adapt the RMIT compliance flow, failover strategy, or fraud detection tier to your payment platform requirements.

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How do you design a highly available, PCI DSS-compliant payment switch on AWS with real-time fraud detection and automatic failover?

This diagram shows a multi-AZ PayNet Switch platform spanning ap-southeast-1a and ap-southeast-1b with WAF and Shield Advanced protecting ALBs, EC2 Switch Engines and Lambda Transaction Routers processing payments, SageMaker and Kinesis detecting fraud in real-time, and RDS primary-replica, DynamoDB global tables, and Aurora audit logs ensuring data consistency. KMS encryption, Secrets Manager, Gu