Social Blade itself confirmed the data leak.
Social Blade is an American service that tracks social media statistics and analytics. The company released information about the incident after a database containing information about users of the service was put up for sale on a hacker forum this week.
According to a statement from Social Blade, the data breach became known on December 14, when an unknown hacker found a breach in the service's security and copied the user database, after which it was put up for sale. The database contains 5.6 million records dated September of this year. The attacker expects 1-2 sales, after which he promised to delete the topic.
In the hands of the hacker were email addresses, password hashes, user IDs, IP addresses, authentication tokens for connected accounts, as well as some internal data of Social Blade.
The company noted that the attacker was unable to steal personal card data, and all passwords are hashed using a reliable BCrypt algorithm. However, users are still advised to change their password and remain vigilant so as not to fall victim to a phishing attack.