Mastercard, Visa, Access, Barclaycard, Amex, JCB ...
Paul J. Ste. Marie
pstemari at bismark.cbis.com
Thu Jul 7 08:20:37 PDT 1994
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The credit card swipers send the entire transaction in for both
approval and reporting. I'd imagine that the account number, merchant
number, and transaction amount are all there, since that's all needed.
Whether or not they encrypt the data I don't know.
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