In plenty of Disney movies you hear the same whimsical advice: "Follow your heart." Now banks, the least whimsical institutions ever, have decided there's something to that advice.
An interesting fact about humans is that we all have a unique heartbeat. While retinal scanners and some facial scanners can be fooled with a high-resolution image, heartbeats are much tougher to fake. In fact, it's nearly impossible.
That's why instead of requiring you to create stronger, tougher passwords that are a pain to make up and remember, one bank in the United Kingdom is trying something completely new. Instead of passwords, customers are using their heartbeats to login to their accounts.