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September 24, 2001 
Biometrics and Security
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Computer monitor showing iris scan technology

The terrorist attacks of September 11 have heightened interest in technologies that can provide positive identification of airline passengers. Many of these technologies use biometric methods that identify people by their fingerprints; scans of their retinas, irises, or the palms of their hands; their voices; or other physical characteristics. Such technologies have been developed for a variety of applications and some are already in use.  One county prison in Pennsylvania, for example, uses iris scans to identify prisoners before they are released and to check if they have been incarcerated under a different name. The U.S. Immigration and Naturalization Service uses a system called INSPASS at eight U.S. and Canadian airports.  This system allows U.S. citizens and certain others who are frequent travelers to the U.S. to identify themselves with palm scans and speed up their immigration clearance. Iceland's international airport at Keflavik uses facial scans to check passengers against a hotlist.  A number of companies are marketing biometric instruments for use in information security--i.e., to provide positive identification of a computer user before he or she can login on a network.

The use of biometric technologies in airports, as well as to control access to industrial facilities and to public buildings where authorities are concerned about security risks, is certain to grow. Biometric technologies are not, however, a panacea for the problem of terrorism. Like other technologies, they must be used by human operators and are thus subject to human error or deliberate misuse. In addition, because they operate by comparing a current scan with a scan in their database, they cannot positively identify a person.  They can only verify (within a certain margin of error) that the person is who he or she said they were when they were "enrolled" in the system--i.e., when their original scan was entered. Research currently underway (and bound to accelerate) will improve the accuracy of existing systems and develop new ways of identifying people, but it is not likely to overcome these fundamental limitations.

Links:
= highly recommended

Infosyssec, a portal site for information systems security professionals, has a section devoted to biometrics, including an extensive set of links.

"Are You Ready for Biometrics?" from PC Magazine Online (February 23, 1999).  Although it is over two years old, this site is a good introduction to various aspects of biometrics, mainly as applied to computer network security.

Precise Biometrics, a Swedish firm that offers what it claims to be "the world's first plug and play fingerprint reader for access control systems."

Identix, a California firm that "authenticates people for secure and trusted access" with a variety of products for information systems as well as physical facilities.  See the article on its site on technology and airport security, reprinted from the San Francisco Chronicle.

Visionics, a biometrics identification firm from Minnesota, whose products include FaceIt® face recognition technology and a mobile fingerprint identification system.

Advanced Biometrics, Inc.  Its products include Key FreeTM a device for controlling access by infrared scanning of an individual's palm.

The Biometrics Institute, a not-for-profit organization based in Sydney, Australia, engaged in research, analysis and education for biometric users, vendors and government agencies in the Asia Pacific region.

Biometrics Research Homepage at the Department of Computer Science and Engineering of Michigan State University.

AIM, a global trade association for automatic identification system users and providers.  This site has many useful resources, including several brief case studies of current uses of biometric identification systems.

The Association for Biometrics.  Located in Halifax, UK, this is an international professional and trade association for the biometrics community.

"After the Terrorist Attacks: What Could Biometrics Have Done? What Might They Do in the Future?" from the International Biometric Group, a New York integration and consulting firm that until recently, had been located in the World Trade Center.

"Digital Persona," by Holly Hanke.  "Soon, fingerprint, face and iris scans will replace passwords at the ATM and credit cards at the local grocery store."  A popularized account from the September 9-15, 1999 issue of Metro, a weekly newspaper from Silicon Valley.

Biometrics 2001, a conference and exhibition to be held in London, UK, in late November.


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