Clearview AI, the controversial facial-recognition company partnering with police, says its entire customer list was stolen in a breach

The full client list of Clearview AI, the embattled facial-recognition company, was stolen by someone with "unauthorized access," The Daily Beast first reported.

The company has drawn backlash from privacy advocates and major social-media platforms over its facial-recognition tool, which lets police use a photo of a person to search a database of images from social media and identify people based on their faces. The breach is notable because Clearview markets its services to law-enforcement agencies and has previously avoided disclosing who its clients are.

Tor Ekeland, Clearview AI's attorney,...