The source of the data is not known
https://www.bleepingcomputer.com/news/security/hacker-sells-the-data-for-millions-of-moscow-drivers-for-800/
Hackers are selling a stolen database containing 50 million records of Moscow driver data on an underground forum for only $800.
According to Russian media outlets that purchased the database, the data appears to be valid and contains records collected between 2006 and 2019