Think of the number of things in use today for controlling access to anything; keys, cards, passwords, PINs, and the list goes on. Biometrics is the key to a key-free world, where you don’t need to memorize anything or carry multiple access devices, since the access device is you. With biometric technologies like fingerprint scanning, facial and voice recognition, and even iris recognition becoming popular in smartphones, authentication can be made more secure and convenient. In fact, many smartphone apps already use biometric authentication for authorizing payments. As with any emerging technology, there is a world of possibilities as well as a few concerns: Social Impact – Biometric technologies scan biological patterns which are unique to an individual to identify them. They are so accurate and individual that law enforcement agencies and judicial systems around the world have used them for over a century. This makes many people skeptical, since collect...