A business using a credit card doing business with a relatively small number of vendors wanting to first avoid credit card fraud (stolen numbers) and secondly wanting to easily track down the offending business.
The business would like to approve particular vendors to use the credit card with number 0000-0000-0000-0000 with each individual business pre-approved to run the transaction with a 5th set of identifiable numbers, so something like 0000-0000-0000-0000-0001.
If the credit card is used to make a fraudulent transaction, then ideally, they would have had to have used the 5th set of identifying numbers. This 5th set of identifiable numbers would then allow for easy tracking of the offending vendor, which would allow the business to either re-think doing business with them, or to serve as a starting point discuss security issues with the vendor’s credit card transaction processes.
Basically, I believe there may be a need for a new or value added credit card type service. This transaction type would require a 5th set of numbers which have been assigned to pre-approved vendors. This 5 number set (ie. 0000-0000-0000-0000-0002) credit card transaction would most likely prevent theft right off (because the vendor is pre-approved and should provide their own private key (ie. CCV) to put through the transaction). Secondly, if and when the credit card number is stolen and used to make a fraudulent purchase, then, at least with the 5th number set a vendor can be identified and security policy with them can be re-evaluated.