In recent years, the start-ups Clearview AI and PimEyes have pushed the boundaries of what the public thought was possible by releasing face search engines paired with millions of photos from the public web (PimEyes) or even billions (Clearview). With these tools, available to the police in the case of Clearview AI and the public at large in the case of PimEyes, a snapshot of someone can be used to find other online photos where that face appears, potentially revealing a name, social media profiles or information a person would never want to be linked to publicly, such as risqué photos.
What these start-ups had done wasn’t a technological breakthrough; it was an ethical one. Tech giants had developed the ability to recognize unknown people’s faces years earlier, but had chosen to hold the technology back, deciding that the most extreme version — putting a name to a stranger’s face — was too dangerous to make widely available.
via www.nytimes.com