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Re:Can the Visa-Mastercard duopoly be broken? by hakfoo on Thursday August 18, 2022 @12:32AM (#32505315)
Fraud detection is difficult when there's no uniformity in experience.

PayPal's "redirect the user through our services" flows provide more uniformity than some random site with a hosted-- or even baked-into-the-shopping-cart-- credit card form-- but I wouldn't say it's uniform enough that people would be able to reliably identify something outside the norm.

Just think of currency-- could you spot a decent quality counterfeit? Particularly if you're dealing with a more edge-case design that you don't encounter every day (say, a Series 1934 $50 note)?

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