sexta-feira, dezembro 12, 2003

:: Prepare to be scanned ::

From Economist.com

High-tech security systems that rely on detailed measurements of the human body, known as biometrics, are taking off. The question is whether they should be...

Biometrics: High-tech security systems that rely on detailed measurements of the human body, known as biometrics, are taking off. But should they be?

IT HAS been a long time coming. But after years of false starts, security systems based on biometrics—human characteristics such as faces, hand shapes and fingerprints—are finally taking off. Proponents have long argued that because biometrics cannot be forgotten, like a password, or lost or stolen, like a key or an identity card, they are an ideal way to control access to computer networks, airport service-areas and bank vaults.



But biometrics have not yet spread beyond such niche markets, for two main reasons. The first is the unease they can inspire among users. Many people would prefer not to have to submit their eyes for scanning in order to withdraw money from a cash dispenser. The second reason is cost: biometric systems are expensive compared with other security measures, such as passwords and personal identification numbers. So while biometrics may provide extra security, the costs currently outweigh the benefits in most cases.

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