In the era of big data, authentication and security have become evermore important pieces of the puzzle. Companies authenticate identity for a variety of reasons, such as protecting against a security breach, on-site access control and proper encryption of data. Used to make sure people are who they say they are, we see authentication employed most often for employee verification, protecting personal, financial and medical information, and in the sale of controlled substances, like cigarettes or alcohol. In addition, banks and healthcare facilities may soon require individuals to have IDs authenticated or biometric identifiers may be required to gain access to personal accounts. Not only does this help speed up transaction time and check-in processes, it also adds a layer of security to sensitive, personal information.