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Women in Brussels 'filmed without their knowledge' by men wearing Meta smart glasses
(www.brusselstimes.com)
This is a most excellent place for technology news and articles.
Someone made a hoodie with IR LED lights all around the face. I bet one could also build it into a necklace or something, but you'd need some sort of battery in your pocket to power them.
The real problem with these is that they are only really effective at night. In daylight, the blinding effect of the LEDs is minimized.