Latest Posts
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Fundamentals of PCI-DSS: What You Need to Know
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If you’re working with payment systems, whether it’s handling credit card transactions, developing payment gateways, or running an e-commerce business, PCI-DSS is one acronym you can’t affort to ignore. As someone who has worked with payment processing, compliance, and fraud prevention systems, I know firsthand how crucial PCI-DSS compliance is. Yet, for many developers, security…
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ISO-8583: Understanding BITMAP
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If you’ve ever worked with payment processing, you’ve probably encountered ISO-8583. It’s the standard used by financial institutions for electronic transactions, and understanding it is key to working on POS systems, ATMs, and payment gateways. One of the trickiest parts? BITMAPS. If you’ve ever stared at a HEX dump of an ISO-8583 message, wondering what…
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Fundamentals of PCI-MPoC: What You Need to Know
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If you’ve been working with payment solutions like I have, especially in face-to-face (f2f) transactions, online payments, and backend payment integrations—you’ve probably encountered the ever-evolving security requirements from PCI SSC (Payment Card Industry Security Standards Council). With more merchants adopting mobile-based payment solutions, PCI has introduced a new framework called PCI-MPoC (Mobile Payments on COTS).…
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Introduction to ISO-8583: The Language of Financial Transactions
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If you’ve ever swiped your credit card, tapped your phone to pay, or used an ATM, chances are you’ve interacted with ISO-8583—whether you knew it or not. This standard defines the structure of financial messages exchanged between banks, processors, and payment networks. And if you’re working in the payments industry, especially in backend services or…
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Fundamentals of Card Payments
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Card payments are everywhere, from your morning coffee purchase to online shopping. But have you ever wondered what happens behind the scenes when you tap, swipe, or enter your card details? Understanding how card payments work is essential, whether you’re a business owner, a financial professional, or just someone curious about payment systems. In this…
About Me
Hi I’m Assi—I’m dedicated to advancing cashless payment technology and sharing insights with fellow developers and solution architects on my blog, Cashless Nomad.
I embrace a mobile lifestyle by replacing cash with digital payments, enabling seamless transactions anywhere. Going cashless keeps me connected, agile, and financially flexible—perfect for traveling light and skipping currency hassles.
Checkout my other blogs at marai.dev