credit cards such as CVV

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Manual authorization number that aims to be able to make transactions. Well usually the secret code consists of 3 or 4 digits shown on every credit card. Visa and Mastercard Have 3 digits CVV / CVC, while American Express has 4 digits CIN (Card Identification Number) The secret code of https://www.creditcardvalid.com/how-to-find-cvv-code-on-my-credit-card/


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