Body Scanning Can Secure Transactions

Voice authentication: The sound of the voice is also individual to each person. Voice biometrics is considered by many experts to be the least expensive and least invasive of biometric technologies, since customers need only speak over the phone to be identified in most instances. Similar to fingerprint biometrics, voice authentication makes a digital map of the peaks and valleys of your voice then cross checks it against your real voice.

Facial scanning and hand geometry: In these scenarios, digital maps are made of the shape of the face or the shape of the hand. In order to be identified in the first instance, customers stand in front of camera that reads the points of the face and compares them to digital information stored in a computer database. In the second example, customers would grasp an object that reads the shape of their hands and similarly compares that to encoded hand shapes in a database. Experts said these forms of biometric technology can be among the least effective since the shape of the face and hands can easily change.

Iris scanning: In this instance, a digital map of the shape of the iris is made. A customer stands in front of a camera that takes a quick snapshot, or uses a laser to read the iris, comparing the shape to the digitized information already stored. Considered to be the most accurate of the biometric technologies, it is also considered the most invasive, since it involves the eyes.