In 2020 Marx read about Clearview AI, a company that says it has scraped billions of photos from the internet to create a huge database of faces.By uploading a single photo, Clearview’s clients, which include law enforcement agencies, can use the company’s facial recognition technology to unearth other online photos featuring the same face.To him, it was obvious that Clearview was violating Europe’s privacy law, the GDPR, by using his face, or biometric data, without his knowledge or permission.So in February 2020 he filed a complaint with his local privacy regulator in Hamburg.“That is too slow, even if you take into account that it’s the first case of its kind.”Across Europe, millions of people’s faces are appearing in search engines operated by companies like Clearview."