Biometrics: truths and untruths

Biometrics is a scientific method used in technology to authenticate access to given critical resources. This system is based on the recognition of specific extremely personal ‘distinguishing marks’, that is to say unique physiological and behavioral traits. At a time when there is talk of ‘certainty of access’, that is to say of univocal authentication of the users of a service, biometrics could provide a valid alternative.