Design a Credit Card Processing System — System Design Interview Practice
Design a secure payment processing system for credit card transactions with fraud detection. Work through the requirements, architecture trade-offs, and an interactive design review.
Requirements and concepts to consider
- Process credit card transactionsRequirement
- Tokenization for card securityRequirement
- Fraud detection and preventionRequirement
- 3D Secure authenticationRequirement
- Handle chargebacks and disputesRequirement
- Support multiple payment networksRequirement
- PCI DSS complianceRequirement
- Handle millions of transactions per dayRequirement
- paymentsConcept to explore
- securityConcept to explore
- fraud detectionConcept to explore
- complianceConcept to explore
- financialConcept to explore