Forget passwords?? http://www.getnymi.com/ "Like a fingerprint, your heartbeat is unique. The Nymi tells the world, you are you, allowing you to securely communicate your identity to all of your favourite devices." "When you clasp the Nymi around your wrist it powers on. By placing a finger on the topside sensor while your wrist is in contact with the bottom sensor, you complete an electrical circuit. After you feel a vibration and see the LEDs illuminate, your Nymi knows you are you and your devices will too. You will stay authenticated until your Nymi is taken off. Your identity is no small matter. When it comes to wearable authentication technology you don’t want to sacrifice security and privacy all for the sake of convenience. To us, that’s a sacrifice you should never have to make. The Nymi functions on a 3-factor security system. To take control of your identity you must have your Nymi, your unique heartbeat and an Authorized Authentication Device (AAD), which would be a smartphone or device registered with our app. The Nymi is also built upon the principles of Privacy by Design, which means that only you control and access your identity and personal information."