Payment and Financial Data Security Questions

Covers architecture and controls to protect payment flows and financial information. Topics include PCI DSS fundamentals, tokenization and vaulting strategies, secure payment flows and integration with payment processors, encryption and storage of cardholder data, fraud detection and prevention mechanisms, logging and reconciliation needs, and the regulatory and privacy implications of handling financial data. Candidates should discuss secure design patterns, operational controls, and trade offs between latency, cost, and compliance.