Payment Fraud Detection

The cluster focuses on discussions about fraud detection in payment systems, chargebacks, who bears the financial losses (banks vs. merchants), and the challenges of false positives versus preventing scams.

📉 Falling 0.3x Finance & Crypto
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#653
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Keywords

FB StackOverflow OK FWIW Privacy.com PayPal ycombinator.com CC n.b OTOH fraud transaction bank credit credit cards card fraudulent upwork banks cards

Sample Comments

lostmsu • Mar 6, 2024 • View on HN

Does not this already happen in case of fraud pretty much everywhere?

chii • Dec 27, 2014 • View on HN

does it really work like that? i thought the banks had to cop the losses due to fraud.

chihuahua • Sep 15, 2022 • View on HN

It's easy to forget the firehose of fraud attempts that platforms like Stripe, PayPal, etc must be dealing with 24 hours a day. I assume that's what's behind most of these unfortunate incidents. Not that there is fraud in this case, but this could be one false positive among billions of true positives.

detaro • May 31, 2019 • View on HN

Any that suspects fraud and doesn't want to be on the hook for the inevitable chargeback.

the_arun • Apr 19, 2018 • View on HN

Shouldn't fraud detection available by default? Why customer has to pay extra?

alexhawdon • Feb 19, 2016 • View on HN

In practice, I should imagine fraud protection would kick in and prevent the transaction.

tmcz26 • Aug 16, 2025 • View on HN

Look up “chargeback guarantee”. A lot of fraud vendors do this. Costs 2x or more though than the average transaction

LunaSea • Mar 1, 2024 • View on HN

Wouldn't this also forbid payment fraud detection algorithms for example?

uladzislau • Jan 17, 2014 • View on HN

Fraud protection, isn't it obvious?

aneesh • Aug 9, 2009 • View on HN

Props to the guy that figured it out on StackOverflow! I still wonder about how that transaction got through without triggering a fraud alert.