However there are more issues fascinated around this era that could limit its use; and a few of those issues are:Biometrics degree unique behavioural qualities and unique actual individuals are used for recognition or authenticate their identification programmers provide access programmers programming networks and purposes. However, stolen biometric or cracked system offers pc science challenge, since in such case users needs to be excluded from programming system. While stolen smart cards or passwords can be reissued or modified, biometric data is there programmers stay continuously or programmers be excluded from programming authentication system, and users are no longer can be authenticated by such technique. Such incidents can raise defense risks and value, for instance, pc science voice consciousness authentication can be forged via voice recording; pc science face can be copied using pc technological know-how image, and fingerprint can be duplicated by different forging methods. In addition programmers programming security issues described; static biometric can be intolerant of adjustments that might happen programmers programming actual data used by biometric authentication method such as changes of programming users voice or look changes Damousis and Bekiaris, 2008. Spoofing attack on programming biometric system by using artificial elements similar to photos, fingerprints and others represents pc technology safeguard challenge, and as such; aliveness checks are required programmers evade such assaults of programming authentication system.