Brain Data Is the Last Privacy Frontier to Be Unlocked

Since the 1970s, brain-computer interfaces have moved from laboratory research into medicine. In 2023, a paralyzed participant was able to produce speech by attempting to speak in the mind. Electrodes recorded activity in speech-related brain areas, and a computer model turned the signals into text and sound. In the same year, another team used an external fMRI scanner to recover parts of the meaning of sentences a participant heard or imagined. In 2025, NIH described research that decoded part of silent speech and required a passphrase to prevent the system from producing words the participant had not intended to say.

Since the 1970s, brain-computer interfaces have moved from laboratory research into medicine. In 2023, a paralyzed participant was able to produce speech by attempting to speak in the mind. Electrodes recorded activity in speech-related brain areas, and a computer model turned the signals into text and sound. In the same year, another team used an external fMRI scanner to recover parts of the meaning of sentences a participant heard or imagined. In 2025, NIH described research that decoded part of silent speech and required a passphrase to prevent the system from producing words the participant had not intended to say.

Since the 1970s, brain-computer interfaces have moved from laboratory research into medicine. In 2023, a paralyzed participant was able to produce speech by attempting to speak in the mind. Electrodes recorded activity in speech-related brain areas, and a computer model turned the signals into text and sound. In the same year, another team used an external fMRI scanner to recover parts of the meaning of sentences a participant heard or imagined. In 2025, NIH described research that decoded part of silent speech and required a passphrase to prevent the system from producing words the participant had not intended to say.

Since the 1970s, brain-computer interfaces have moved from laboratory research into medicine. In 2023, a paralyzed participant was able to produce speech by attempting to speak in the mind. Electrodes recorded activity in speech-related brain areas, and a computer model turned the signals into text and sound. In the same year, another team used an external fMRI scanner to recover parts of the meaning of sentences a participant heard or imagined. In 2025, NIH described research that decoded part of silent speech and required a passphrase to prevent the system from producing words the participant had not intended to say.