Biometrics is becoming increasingly common in establishments that require high security such as government and the financial sector. The increased threat to national security has led to the wide interest in biometrics. A number of biometric devices are now available to capture biometric measurements such as fingerprints, palm, retinal scans, keystroke, voice recognition and facial scanning. However, the accuracy of these measurements varies, which has a direct relevance on the levels of security they offer. In addition, with the need to combat the problems related to identify theft and other security issues, society will have to compromise between security and personal freedoms. Securing Biometrics Applications investigates and identifies key impacts of biometric security applications. It also discovers opportunities and challenges presented by available biometric technologies.