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by daneel_w
26 days ago
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In reality, most banks perform a lot of these transaction checks in real time to block fraudulent txes up-front, instead of validating tx legitimacy retroactively at a point where the money is already gone. Some 15 years ago a security rep with Nordea (a large Nordic bank) called me late at night asking if I was currently in South Korea and had just a minute ago used my card in a shop. Someone had initiated a "card present" purchase with my card for 1337 SEK (I'm certain this amount was intentional), which Nordea automatically blocked as it was near the edge of possibility relative to my previous card swipe in Sweden earlier in the day, and they wanted to make sure they weren't about to mistakenly strand me abroad by blocking the card. |
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