Battle for the Cards: Signatures versus PINs

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Regular readers of SC's Opinionwire will recall me wibbling on about how credit and debit card issuers are moving steadily towards PIN-based authorization of transactions.

If you live in the U.K., you'll probably have noticed some curious PIN-pads on stalks being installed at a growing number of Post Offices while, elsewhere in Europe, similar systems are being installed at a number of bank branches. In the U.S., Visa and MasterCard are locked in a battle with the ...

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