The OU Department of Communication provides a broad-based liberal arts education and promotes communication research and development.
On most cards, the card security code is printed on the back of the card
(usually in the signature field). All or part of the card number appears
before the card security code (567 in the example). For American Express,
the 4-digit number (1122 in the example) is printed on the front of the card,
above and to the right of the embossed account number.
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