science.org via Hacker News

Science: Consumer EEG Headband Makers Have Quietly Harvested Tens of Millions of Hours of Brain Data for AI Training

Summary

A Science investigation finds consumer neurotech makers like Emotiv have amassed tens of millions of hours of brain-wave recordings from headband users and are using that data to train 'large brain models' without disclosing it in privacy policies. At least one company updated its policy after Science flagged the practice. With no firm US regulatory framework for biometric neural data, firms face few constraints on storing, sharing, or repurposing what one scientist calls 'the most sensitive data a person has.'

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