A Cheap Way To Make Plastic Cryptic

ONE BIG STUMBLING BLOCK TO shopping via personal computer has been the lack of a way to send payments securely over networks such as the Internet. Consumers can send credit-card numbers in scrambled form, but then banks charge merchants relatively high transaction fees because they have no proof that customers actually have their cards in hand. And banks won't accept debit card payments over a network without the card itself being swiped through a terminal equipped with special hardware to scramble the data.

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