I originally posted this at http://www.318.com/TechJournal Biometric systems measure the physical traits of users to offer a high level of security. As part of their nature biometric security requires users be present in order to log into the systems they protect. Biometric systems typically rely on the combination of a biometric trait and a password. They can also rely on the use of an access card, resulting in a situation where there are three forms of security present to access a system. Biometrics measure physical traits such as hand geometry, retinal patterns, facial scans, fingerprints or voice patterns. The use of biometrics has a potential in a number of situations…