Episode 6 — Map end-to-end payment data flows clearly
This episode focuses on data flow mapping, because the ISA exam expects you to reason through where account data moves and what systems influence its protection. You’ll learn how to build clear end-to-end payment flow narratives that connect business steps to technical paths, including capture, authorization, settlement, refunds, chargebacks, and reporting. We’ll define what a “complete” data flow includes, such as channels, protocols, integration points, and administrative access routes, and we’ll explain how incomplete diagrams create blind spots that later show up as findings. You’ll also practice tracing data through third-party processors, payment gateways, e-commerce platforms, and internal services that enrich transactions, and you’ll learn how to validate flows using logs, configuration evidence, and interviews rather than assumptions. Finally, we’ll cover how to use data flows to support segmentation strategy, evidence collection planning, and risk-based prioritization of controls, which are common exam themes. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
