Wyze Labs Inc., a maker of smart-home cameras and devices, has confirmed a data leak that could affect millions of customers.

Cybersecurity company Twelve Security first reported the leak on Thursday, saying “both the company’s production databases were left entirely open to the internet,” exposing the information of around 2.4 million users. The data reportedly included user names and email addresses, WiFi network names, lists of camera names and personal health information for a small number of beta users.