Hackers posted a post on one of the platforms about the sale of almost four billion phone numbers of users of the Clubhouse social network. Cybersecurity specialist Marc Ruef told about the leak on his Twitter account.

In a message on the forum, the attackers said that they intend to sell all the data before September 4 and are “looking for one serious buyer.” To prove the fact of the “drain,” they published 83 million numbers.

According to Ruef, the numbers of not only people registered in the Clubhouse but also contacts from their phones appeared on the Network. “Most likely, you were included in this list, even if you did not use the Clubhouse,” he stressed.

Earlier, experts in the field of digital security advised to change passwords, use two-factor authentication, and also request that personal information be removed from public access when a leak of their personal data is detected.