Fact · Voice privacy and security
The UK data protection regulator says all biometric data is personal data, because it relates to an identified or identifiable person.
Checked against its source on October 17, 2026
In the source's own words
“All biometric data is personal data, as it relates to an identified or identifiable individual.”
What is special category data? (UK ICO guidance), Information Commissioner's Office (UK), 2025, What is biometric data?.
Open the original- What it measures
- A voiceprint is personal data before any question of special category arises. The ICO page makes this the starting point.
- What it does not show
- UK guidance. The EU GDPR text in Article 4(14) gives the same definition of biometric data.