The National Australia Bank (NAB) has decided to use biometric voice recognition software to identify the genuineness of telephone bankers. It is not the single bank harnessing biometric security technology. Sometime back HSBC started using biometric technology capable of recognizing over 2,500 different facial features to help it control access to data-centres.

Organizations requiring high security are either monitoring or using the development of the biometric security technology industry.

According to Bob McDowall, analyst at TowerGroup, biometrics is an option for banks, but he warned that there are uncertainties and challenges for banks that use it. "It is not 100% because people's voices and faces change. The banks will also have to ensure that the voice and facial data used is secured appropriately because people may see it as an invasion of their privacy," he said.

Healthcare is the another sector that demands very high security. According to Tracy Andrew, head of information and security at Berkshire Shared Services, the NHS Trust only uses biometrics in its nurseries to control parental access."We use fingerprint recognition and it has been 100% successful. It has also improved our efficiency by automating access."