Originally posted by Joe Marshmallow III:
You're saying every Visa signature card has the same first 6 digits?
they may well... the first digits of a credit card identify what kind of card it is (mc, visa, amex, etc), the next few digits identify what bank issued it, etc... the part that identified your card in particular doesn't come until the last 8 digits i believe. so for example, all visa signature cards would start between 451100 and 451299 (completely made this up...)
ergo, if someone gets their paws on the first 6 digits of a visa signature card - PLEASE SHARE! this info isn't identifying. question is: do you have to use a vis signature card to pay for the order, too? (i know that's the case with some Amex reserved ticket sales...)
Originally posted by RatBastard:
Well since ALL VISA cards start with the same number you are 1/6 of the way towards figuring out a valid 6 digit code...
awesome, only 99,999 possible combinations to try! :roll: