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Abstract – In the emerging trends in wireless multimedia services and technologies, the term biometrics is gaining increasing attention in these days. Security systems having realized the value of biometrics, specially, biometrics is used for two basic purposes to verify or identify users. The use of fingerprints, facial characteristics and other biometrics for identification is becoming more common. The paper overviews best of Biometric application for security management. The acquisition of biometric data introduces human research and privacy concerns that must be addressed by the organizations. Iris recognition has received increasing attention in recent years. The uniqueness and randomness of human iris patterns enable us to use it as quicker, easier and highly reliable forms of automatic human identification, where in the human iris serves as a type of biological passport, PIN or password. This paper tells about how the iris recognition system works and how it is a reliable approach to human identification. Iris recognition system comprises of iris image acquisition, image processing, feature extraction and pattern matching. This paper also focuses on how Iris is the best Biometric feature for identit