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> When a participant imagined the password ‘Chitty-Chitty-Bang-Bang’ (the name of an English-language children’s novel) the BCI recognized it with an accuracy of more than 98%.

I wonder how difficult having a conversation about that novel (or film) would be. I imagine you would accidentally start saying your thoughts out loud.

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you could set your password something like "hey siri", which essentially is a keyword to wake siri up.

not often but sometimes, siri wakes up on it's own. i guess people were concerned at early times, but nowadays it's just _another bug_ in the software.

I do not see passphrase (i think the passphrase is a better word for this feature) as a big issue at the moment.

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