https://www.bleepingcomputer.com/news/security/timehop-security-breach-affects-the-company-s-entire-21-million-userbase/

Timehop, a mobile app that surfaces old social media posts from the same day but from previous years, has announced a security breach affecting its entire userbase of over 21 million users.

Not all users were affected to the same extent. The company said a hacker gained access to its infrastructure and stole details on its users that included usernames, emails, telephone numbers, and access keys.