Biometric data

Definition in the Law art. 4

personal data resulting from specific technical processing relating to the physical, physiological or behavioural characteristics of a natural person, which allow or confirm the unique identification of that natural person, such as facial images or dactyloscopic data;

In plain words

Biometric data is data obtained through specific technical processing of a person’s physical, physiological or behavioural characteristics, which allows or confirms that person’s unique identification. A facial image processed by a time-clocking system, or a fingerprint used for office access, is biometric data.