The increasing use of biometric technology is often accompanied by grandiose claims about its ability to enhance security and the debate.over the perceived threats.that it poses to the notion of privacy. By focusing on the security and privacy concerns the biometric technology raises, this chapter.gives critical analysis on the complexities involved through rational discussions, technology assessment and case examples. It clarifies the prevalent misconceptions concerning the biometric technology and finds that biometric technology alone can not provide an answer to security issues. The inherent nature of biometric technology provides enormous potential for undermining privacy. However, security and privacy are not necessarily two contradictory concepts where biometrics is concerned.