This allows for a full 100% biometric validation of the card user, making the card substantially safer for both the card user and the card issuing bank.
Quote:“Using biometrics inside the credit card is something that has taken us over 15 years of R&D but now we find ourselves with arguably the most advanced and exciting biometric solution to fight credit and debit card fraud,” said Chaya Hendrick.
More about RedSys: http://www.redsys.es/en/quienes-somos.html