That's actually the start of a multi-part series:
https://blog.rongarret.info/2013/02/a-simple-solution-to-cre...
https://blog.rongarret.info/2013/02/a-simple-solution-to-cre...
https://blog.rongarret.info/2013/02/a-simple-solution-to-cre...
https://blog.rongarret.info/2013/03/cutting-to-chase-repeal-...
https://blog.rongarret.info/2013/03/a-simple-solution-to-cre...
Keep in mind all that was written twelve years ago and the world has changed a lot since then.
The answer is simpler: it's not that big of a problem to the people that would need to solve it (visa, banks)
Yes, it' billions of dollars per year, but that's on a denominator of trillions.
> In 2022, global payment card transaction volume surpassed $40 trillion, with the U.S. accounting for over $9.5 trillion 1 . If we consider the $5 billion in unauthorized purchases reported by Security.org 2 , the percentage of fraudulent transactions in the U.S. would be approximately 0.05%.
1 - https://docs.google.com/document/d/1tudQcmL8lNH49iZZ8wRB88KW...
That's not wrong, but it misses the point. It's not worth the bank's time to solve it, but for me it would produce a pretty damn good ROI. All I needed was one entry point into the system, but I couldn't find it.
The interchange rate on credit cards is high, but "diabolical" is a stretch.
Also, fraud is a very small line item in a credit card P&L. Generally 25bps to 50bps vs credit charge offs which are closer to 3% to 6%.
Source: Ran risk for Bank of America and a credit card fintech.
[1] https://www.complexsystemspodcast.com/episodes/debanking-pat...
https://www.bitsaboutmoney.com/archive/optimal-amount-of-fra...
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