--- title: "#credit-card articles | Hashnode" description: "Explore 65 articles tagged #credit-card on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/credit-card" --- Tag # #credit-card 65 posts · 17 followers [RisingWave Labs](https://hashnode.com/@RisingWaveLabs) · [Apr 3](https://hashnode.com/posts/credit-card-authorization-streaming-sql/69d0380e3b2eb2f00f46c410) ### [Credit Card Authorization Decisioning with Streaming SQL](https://risingwave.com/blog/credit-card-authorization-streaming-sql?utm_source=hashnode&utm_medium=feed) How issuers and processors use streaming SQL to enrich and score authorization requests in real time, reducing fraud and improving approval rates. 5 min read · [risingwave.com](https://risingwave.com/blog/credit-card-authorization-streaming-sql?utm_source=hashnode&utm_medium=feed) [Bahati Brenda Kizito](https://hashnode.com/@Lioness256) · [Feb 18](https://hashnode.com/posts/training-a-model-to-catch-fraud-and-it-humbled-me-lessons-from-building-a-real-fraud-detection-system/6995b12be9f899122c7961fd) ### [Training a Model to Catch Fraud (And It Humbled Me) - Lessons from Building a Real Fraud Detection System](https://godfident-data.hashnode.dev/training-a-model-to-catch-fraud-and-it-humbled-me-lessons-from-building-a-real-fraud-detection-system?utm_source=hashnode&utm_medium=feed) If you’ve ever built a machine learning project that worked beautifully on your laptop but humbled you in production… welcome to my life 😭 Today I’m sharing my journey building CreditWise AI — my credit card fraud detection project — and everything ... 5 min read · [godfident-data.hashnode.dev](https://godfident-data.hashnode.dev/training-a-model-to-catch-fraud-and-it-humbled-me-lessons-from-building-a-real-fraud-detection-system?utm_source=hashnode&utm_medium=feed) [Imam Hambali](https://hashnode.com/@imamhambali) · [Jan 25](https://hashnode.com/posts/validate-credit-card-luhn-algorithm-excel/6975f74b066acf44ac292b6c) ### [How to Validate Credit Card Numbers using Luhn Algorithm in Excel](https://imamhambali.hashnode.dev/validate-credit-card-luhn-algorithm-excel?utm_source=hashnode&utm_medium=feed) Learn how to validate credit card numbers in Excel using the Luhn Algorithm. Includes a step-by-step guide, modern MAP/LAMBDA formulas, and a free downloada 4 min read · [imamhambali.hashnode.dev](https://imamhambali.hashnode.dev/validate-credit-card-luhn-algorithm-excel?utm_source=hashnode&utm_medium=feed) [Ink Voyage](https://hashnode.com/@InkVoyage) · [Jan 23](https://hashnode.com/posts/when-digital-payments-lead-to-azpay-kredit-or-manato-kredit/6973f48ffd66ec50455f4e27) ### [When Digital Payments Lead to Azpay Kredit or Manato Kredit](https://blogzpost.hashnode.dev/when-digital-payments-lead-to-azpay-kredit-or-manato-kredit?utm_source=hashnode&utm_medium=feed) Explore azpay kredit and manato kredit, how they fit into digital payments, and what to know before using short-term credit in local currency. 4 min read · [blogzpost.hashnode.dev](https://blogzpost.hashnode.dev/when-digital-payments-lead-to-azpay-kredit-or-manato-kredit?utm_source=hashnode&utm_medium=feed) [Nancy-南溪](https://hashnode.com/@Nancy-) · [Jan 13](https://hashnode.com/posts/how-to-open-your-first-us-bank-account-step-by-step-guide-for-2026/6965b4c32853594d44bd87f8) ### [How to Open Your First U.S. Bank Account: Step-by-Step Guide for 2026](https://nancy-banking.hashnode.dev/how-to-open-your-first-us-bank-account-step-by-step-guide-for-2026?utm_source=hashnode&utm_medium=feed) Step-by-step guide for beginners to open U.S. bank accounts & build credit 3 min read · [nancy-banking.hashnode.dev](https://nancy-banking.hashnode.dev/how-to-open-your-first-us-bank-account-step-by-step-guide-for-2026?utm_source=hashnode&utm_medium=feed) [Nancy-南溪](https://hashnode.com/@Nancy-) · [Jan 7](https://hashnode.com/posts/unionpay-vs-visa-vs-mastercard-a-beginner-friendly-guide-to-global-bank-cards-debit-vs-credit-explained/695dd3197b0c6fe4d6ed7f65) ### [UnionPay vs Visa vs Mastercard: A Beginner-Friendly Guide to Global Bank Cards (Debit vs Credit Explained)](https://nancy-banking.hashnode.dev/unionpay-vs-visa-vs-mastercard-a-beginner-friendly-guide-to-global-bank-cards-debit-vs-credit-explained?utm_source=hashnode&utm_medium=feed) A beginner-friendly guide explaining UnionPay, Visa, and Mastercard differences for travel, study, and international payments. 5 min read · [nancy-banking.hashnode.dev](https://nancy-banking.hashnode.dev/unionpay-vs-visa-vs-mastercard-a-beginner-friendly-guide-to-global-bank-cards-debit-vs-credit-explained?utm_source=hashnode&utm_medium=feed) [Omair Ahmed](https://hashnode.com/@omairqazi) · [Dec 19, 2025](https://hashnode.com/posts/using-ml-to-predict-credit-card-defaults/694512e51a7cbd8273ff8fe9) ### [Using ML to Predict Credit Card Defaults](https://omairqazi.hashnode.dev/using-ml-to-predict-credit-card-defaults?utm_source=hashnode&utm_medium=feed) Using ML to Predict Credit Card Defaults Have you ever wondered what the “system” does to approve you instantly when you apply for a credit limit increase on your credit card? Does it make an API call to ChatGPT with your credit report or do the bank... 5 min read · [omairqazi.hashnode.dev](https://omairqazi.hashnode.dev/using-ml-to-predict-credit-card-defaults?utm_source=hashnode&utm_medium=feed) [Buyvcc](https://hashnode.com/@buyvcc) · [Oct 31, 2025](https://hashnode.com/posts/buy-virtual-credit-card-security-privacy-/69053408a3e58925f8caadf2) ### [Buy Virtual Credit Card — Security, Privacy & Freedom in One](https://buyvirtualcreditcard.hashnode.dev/buy-virtual-credit-card-security-privacy-?utm_source=hashnode&utm_medium=feed) Buy Virtual Credit Card — Security, Privacy & Freedom in One 1 min read · [buyvirtualcreditcard.hashnode.dev](https://buyvirtualcreditcard.hashnode.dev/buy-virtual-credit-card-security-privacy-?utm_source=hashnode&utm_medium=feed) [David Mills](https://hashnode.com/@davidtysonmills) · [Oct 18, 2025](https://hashnode.com/posts/why-choosing-the-right-high-risk-payment-gateway-matters-for-your-business/68f38cc5e6c35fbe9f9d3d23) ### [Why Choosing the Right High Risk Payment Gateway Matters for Your Business](https://davidmillsjournal.hashnode.dev/why-choosing-the-right-high-risk-payment-gateway-matters-for-your-business?utm_source=hashnode&utm_medium=feed) Every business owner wants their customers to enjoy a simple and secure payment experience. But when your business falls into the high risk category, things can get complicated. Traditional processors may decline your applications or hold your funds,... 1 min read · [davidmillsjournal.hashnode.dev](https://davidmillsjournal.hashnode.dev/why-choosing-the-right-high-risk-payment-gateway-matters-for-your-business?utm_source=hashnode&utm_medium=feed) [David Mills](https://hashnode.com/@davidtysonmills) · [Oct 16, 2025](https://hashnode.com/posts/how-secure-payment-solutions-build-long-term-business-success/68f1185be152b875185dbd16) ### [How Secure Payment Solutions Build Long Term Business Success](https://davidmillsjournal.hashnode.dev/how-secure-payment-solutions-build-long-term-business-success?utm_source=hashnode&utm_medium=feed) Every successful business depends on trust. Whether you are selling products online or offering professional services, your customers need to feel safe when they make a payment. That feeling of security often determines whether they come back to you ... 1 min read · [davidmillsjournal.hashnode.dev](https://davidmillsjournal.hashnode.dev/how-secure-payment-solutions-build-long-term-business-success?utm_source=hashnode&utm_medium=feed)