An invitation-only chat app, Clubhouse, is the latest social-media platform to see mammoth troves of user data collected and posted in underground forums. The personal data of 1.3 million Clubhouse users has been posted in a hacker forum for free. Names, user IDs, photo URL, number of followers, Twitter and Instagram handles, dates that accounts were created and even the profile information of who invited them to the app. Clubhouse denies it was breached and says the data is out there for anyone to grab.
Source: https://threatpost.com/clubhouse-users-data-hacker-forum/165354/