Biometrics can be defined as “The science of using biological properties to identify individuals; for example, finger prints, a retina scan, and voice recognition (1).” In other words, Biometrics is a science involving the identification and comparison of individual traits which are unique to each person. Biometrics is constantly expanding, and includes devices that test DNA, facial features, as well as other properties which would be considered “unique”.

Fingerprint scanners have been used in movies for ages, but never quite became practical to real world use. Recently, however, they are becoming more and more commonly used. Such devices are found in police stations, high security buildings, and now are being found even for personal use. One can purchase a keyboard or mouse with a built-in fingerprint scanner, or merely a USB device dedicated to fingerprint scanning

In conclusion, biometrics systems are becoming more and more commonplace, even for the individual user. While including, but not limited to; fingerprint scanning, retinal scanning, and vocal recognition, each system has its own strengths and weaknesses, but creates a stronger sense of security based on individual traits and not an easily defeatable system. While no system is 100% secure, biometrics makes it that much closer.

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