I read the article and I have read a lot of comments here. I couldn't find a single reference to where the data set came from that trained the model they are u

I read the article and I have read a lot of comments here. I couldn't find a single reference to where the data set came from that trained the model they are using to do facial recognition. Someone did theorize that it could be taken from a hypothetical law firm website but IIRC a single photo of someone is not good enough to reliably train a model that is not overfit.