Google is testing a new reCAPTCHA verification method that asks users to perform hand gestures in front of their camera. The system analyzes video to extract 21 hand-knuckle coordinates, with Google claiming videos are never linked to user identity and are deleted after verification. Audio is never recorded. The feature is optional and includes alternative challenges for accessibility needs. Privacy concerns have been raised about biometric data handling, and questions remain about its effectiveness against virtual cameras and AI-generated gesture mimicry.
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