Mastercard’s new credit card has a built-in fingerprint scanner

The rise of mobile payments has made buying things with your fingerprint commonplace, so why not put that technology in a credit card? Mastercard thinks it’s worth a shot, and has built a credit card with a fingerprint scanner built right into the bottom. The card is no thicker than normal, and lets users authorize their payments with a touch, rather than using a PIN or signature.The company says the card works with all existing chip-and-PIN readers (no magnetic stripe-only terminals), and