When it comes to credit cards not much has changed since the introduction of the plastic credit card back in the 1960s. Okay, they added a magnetic stripe on the card, big deal. Oh yes, there was that wave and go credit card that seems to have never really caught on.
But here is a video about the invention of a new type of credit card that has some very cool digital features. You can use the same card for multiple accounts and you can protect your account number from use with a passcode.