· * The finger print of those people working in Chemical industries are often affected. Therefore these companies should not use the finger print mode of authentication.
· * It is found that with age, the voice of a person differs. Also when the person has flu or throat infection the voice changes or if there there are too much noise in the environment this method maynot authenticate correctly. Therefore this method of verification is not workable all the time.
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· * For people affected with diabetes, the eyes get affected resulting in differences.
· *Biometrics is an expensive security solution.
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