Google tests biometric reCAPTCHA using 21-point hand landmark detection
June 29, 2026
Google's new reCAPTCHA test utilizes camera access to perform liveness detection via hand-landmark mapping. The system extracts 21 coordinate points from real-time video of hand movements to differentiate humans from automated bots during authentication.
HOW THIS AFFECTS YOU
●
builderYou may need to integrate or account for more invasive biometric authentication flows in user UX.
●
policyThis introduces new biometric data collection and privacy compliance considerations for web services.