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Meta’s Ray-Ban Display Glasses And The New Glassholes
(hackaday.com)
This is a most excellent place for technology news and articles.
Not sure how or why the attacker wouldn't be able to recognise them normally.
Every technology can be used to do shitty stuff, and in most cases has been. It's up to the govts to protect the rights of the people. If you're in the US, you're already on the verge of losing all rights anyway. For the rest of the world, there's no reason to think we couldn't regulate it in a reasonably privacy-friendly way. Local face tagging and recognition could work without cloud access, so that you'd only have access to information you keyed in yourself about somebody.