Biometric Privacy Laws: What You Need to Know

Fingerprints, facial recognition scans, and voiceprints are treated as especially sensitive data under a growing number of state laws — and the penalties for mishandling them have proven to be some of the steepest in privacy law.

Why Biometric Data Gets Special Treatment

Unlike a password, biometric identifiers can't be changed if compromised, which is the core reason lawmakers have singled out this category of data for heightened protection compared to more general personal information.

Common covered categories include fingerprints, facial geometry scans, iris or retina scans, and voiceprints used to identify a specific individual.

Illinois's Biometric Information Privacy Act (BIPA)

Illinois's BIPA is the most litigated biometric privacy law in the country, requiring written notice and consent before collecting biometric data and giving individuals a private right to sue for violations — a significant difference from most privacy laws, which only allow government enforcement.

BIPA lawsuits, including major class actions against companies using facial recognition or fingerprint time clocks without proper consent, have resulted in some of the largest privacy settlements in U.S. history.

Compliance Considerations for Businesses

Businesses using biometric time clocks, facial recognition security systems, or biometric authentication for apps need to review the specific consent, notice, and data retention requirements in every state where they operate or have employees.

A written biometric data policy, informed consent obtained before collection, and clear data retention and destruction schedules are standard elements of a compliant biometric data program.

Frequently Asked Questions

Does my business need special consent to use a fingerprint time clock?

In states with biometric privacy laws like Illinois, generally yes — written notice and consent are typically required before collection.

Can employees sue over biometric privacy violations?

In states like Illinois with a private right of action, yes, and these lawsuits have resulted in significant settlements and verdicts.

Biometric data carries some of the strictest privacy obligations and the steepest litigation risk of any data category. A data privacy attorney can help you implement compliant collection and consent practices.