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Old 05-26-2010, 06:40 AM
c0stanton c0stanton is offline
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Default last 4 digits?
I've noticed that clerks have been asking me for the last four digits of my credit card recently.... is that some form of protection? what's the deal with that?
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Old 06-19-2010, 01:48 AM
safetyman safetyman is offline
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i dont know why they would do this, because 92% of people have no idea what the last 4 digits are. And by law on a visa card clerks are not allowed to ask to see your id. It is against visa terms of service. So if they ask again say no and have them get a manager. With your card number and id even dumb clerks can steal your id.
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Old 07-01-2010, 10:51 AM
parryrater parryrater is offline
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Hi Buddy!!!

What is the last 4 digits in credit cards system...??? meet again.

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Old 07-02-2010, 11:48 AM
joey88 joey88 is offline
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Hi Buddy!!!

What is the last 4 digits in credit cards system...??? meet again.
The 4-digit "extra" code is nothing but the last digits of PAN, or the card number. I.e. those four digits on the reverse of our "real" credit cards are those very PAN + CVV (or CVC2) numbers.
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Old 01-08-2011, 09:51 AM
zyxwvu zyxwvu is offline
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Those last three should not be disclosed to anybody,they are the most important numbers. They should be kept private.
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Old 01-18-2011, 09:25 AM
vickey88 vickey88 is offline
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This is not an essay on credit cards per se. If that's what you're looking for, I recommend Joe Ziegler's excellent series Everything You Ever Wanted to Know about Credit Cards. This essay has a narrower focus -- to explore the anatomy of your credit card number, and to provide Java source code which determines if a given credit card number might be valid.
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