US-based technology company SmartMetric has added real time finger detection into its in-the-card fingerprint scanner for the biometric credit and debit card.

The new technology aims to increase security for card transactions.

It requires the card holder to touch the surface mounted square sensor on the card. It procures and transmits a detailed image of the fingerprint to the card’s internal processor.

Subsequently, the card’s smart card chip and/or RFID transmission is turned on if the fingerprint matches with the pre-stored fingerprint.

The overall process takes less than a second to complete.

If the fingerprint does not match, the card continues to remain inactive and the smart card chip will not work.

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The technology also includes additional sensing functions that can recognise ‘liveness’ of a finger. This in turn prevents the ‘dead finger’ fingerprint replication.

SmartMetric president and CEO Chaya Hendrick said: “This is an important feature that foils attempts to use a recreated fake finger in order to get around the strong biometric security embedded inside our cards.”

The SmartMetric biometric card is as thin as a standard credit card. It includes a fully functional fingerprint scanner with a rechargeable battery.

The biometric credit/debit cards are currently offered to banks in the US and Latin America.

Last month, SmartMetric partnered with Spanish card payment scheme ServiRed to manufacture biometric credit cards.