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Why companies ask for only last 4 digits of card, name and date of expiry? What last 4 digits of card can reveal?
The last four digits are unique and help identify the customer. At the same time, they do not allow you to reveal the full card number. Therefore, when making transactions, they are the ones that are requested.Why companies ask for only last 4 digits of card, name and date of expiry? What last 4 digits of card can reveal?