eBay is training its artificial intelligence using photos harvested from a social network popular among teenage girls for sharing photographs of their outfits without their knowledge or consent.
The online marketplace uses pictures uploaded by unsuspecting users of Chictopia, a popular “style” sharing website headquartered in San Francisco.
Chictopia, which describes itself as “the world’s largest style community”, is used to vote on the best outfits and blog about style. It also offers a shopping service, similar to British retail website ASOS’ marketplace.
When contacted by The Telegraph, Chictopia's founder and chief executive said she "was not aware" that eBay was using its pictures.