Biometric data, as defined in Article 4(14) of General Data Protection Regulation (GDPR): “‘biometric data’ means personal data resulting from specific technical processing relating to the physical, physiological, or behavioral characteristics of a natural person, which allows or confirms the unique identification of that natural person, such as facial images or dactyloscopic data.”
Examples of physical or physiological biometric identification techniques:
- Facial recognition;
- Dactyloscopic data (fingerprint verification);
- Iris scanning;
- Retinal analysis;
- Voice recognition;
- Ear shape recognition.
Examples of behavioral biometric identification techniques:
- Keystroke analysis;
- Handwritten signature analysis;
- Gait analysis;
- Gaze analysis (eye-tracking).