October 2, 2001, 12:00 AM

Card verification numbers serve offline world, but are they a remedy for Internet card fraud?

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The CVN Details
Card Company CVN Name Digits Location on Card
American Express CID: Card Identification Number 4 Front – appears above the account number on the front of the card on either the right or left edge of the card.
American Express CSC: Card Security Code 3 Back – in the right portion of the tamper evident signature panel.
Discover CID: Cardmember ID 3 Back –in the right portion of the tamper evident signature panel.
Diners Club CVV: Card Verification Value 3 Back –in the right portion of the tamper evident signature panel.
MasterCard CVC2: Card Validation Code 2 3 Back – in the center of the upper portion of the signature panel allowing for maximum space for the cardholder signature.
Visa CVV2: Card Verification Value 2 3 Back –in the upper right corner of the signature panel.

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