ISO 8583: The language of credit cards

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The ISO 8583 standard serves as the foundational communication protocol for financial transactions involving credit and debit cards. It involves complex data structuring using bitmaps and can include various encoding formats (BCD, ASCII, EBCDIC), contributing to its intricacies and challenges in implementation. The conversational comments highlight a blend of nostalgia and challenges faced while working with ISO 8583 in the past, pointing to the evolving landscape of payment systems, particularly with the rise of big tech's ownership of payment ecosystems. This reflects a critical moment in the financial industry where new standards may emerge, paralleling the changes happening in global payment systems. The comments also suggest a growing awareness of ISO 8583 as not just a technical standard but also a vital part of the strategic shift within financial services.
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