4 ms·

I think they can be same, but they always > 99 (at least I never saw a card with CVV starting with 0)

• girvo 10y ago
  I have, it was a Visa.
• ctrl-j 10y ago
  A coworker of mine thought the same. Parsed the string into an int - we saw a bunch of cards get declined by our gateway processing company. They definitely can have leading zeroes.