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Ask HN: Why are my CVV numbers the same?
I have two Mastercards, with two different card numbers and expiry dates, issued at different times, from different institutions, with different variations of my name on each.
The CVV numbers on them are exactly the same.
Is it a one-in-999 coincidence?
Or is this exposing an exploitable weakness in however the CVVs are generated?
- ocdtrekkie 10y agoI suspect it's a coincidence. I've never had two cards with the same CVV.
- dataentryagency 10y agoIts just a coincidence.
- PaulHoule 10y agoI had one which was 000.