Neurotech users' brain data is secretly used to train AI models

Why it matters

The core problem identified is a lack of transparency: users are not aware that their brain signals feed into model training. For a technology that depends on trust, that gap raises questions about consent, about how clearly companies describe data use, and about whether existing privacy rules are adequate for neural data.

The available details on the investigation are limited, and further specifics on the companies and products involved were not part of the material provided. Readers who use neurotech products may want to check what the provider's privacy terms say about the reuse of recorded brain data, and whether training use can be declined.