It is a very easy argument system, our personal life, other attacking watches may be other than using this kind of information, especially when they have a biometric data. However, a secure system that has been well-tested and tightly closed, you have no such kind of concern. There is very little use for stored biometric data and you should not have any problems with data protection or privacy laws as long as it is encrypted.
By increasing the automation and maturity of modern technology systems such as cellular phones and the Internet, users have taken the lead in the current use of technological methods. Personal identity has the ability of a private PIN and password for door access system Singapore.