The fact of the leak was reported to journalists by Ivan Zhdanov, director of the Anti-Corruption Fund founded by Navalny (recognized as a foreign agent in the Russian Federation).
“This has happened now, when there are 70 thousand signatures left until the end of the campaign, and it is much more difficult for us to collect each consent to a rally. We see that this is the base that we use for mailing to e-mail addresses”, - RBC quotes Zhdanov's statement.
According to Zhdanov, the Mailgun service was used for mailing, and now the Foundation's employees are investigating who and how declassified the database and published it in the public domain. According to the FBK, there was no other information in the database, except for the email addresses of potential participants in the rally. Navalny's team did not collect any other personal information.
Meanwhile, the media reported that unknown attackers have already started using the base. For example, some users have already received threatening emails. The senders of these letters promise to find out and publish the names of Navalny's supporters, as well as sell their addresses and phone numbers to advertising companies.
Official comments from representatives of the mail service Mailgun have not yet been received.
Earlier it was reported that massive protest actions swept across the country on January 23 and 31 and February 2. Tens of thousands of people took to the streets of Russian cities demanding the release of Navalny and other political prisoners. The actions were accompanied by brutal police detentions. Thousands of participants were administratively punished for participating in unsanctioned protests, and criminal cases were opened against several people. In a number of cities, even schoolchildren were subjected to harassment and fines for participating in rallies, and teachers who went to single pickets in support of Navalny were fired from their jobs.
After a series of mass arrests, the head of Navalny's network of regional headquarters, Leonid Volkov, called on the politician's supporters to temporarily suspend weekly protests and instead suggested starting preparations for an all-Russian super-mass action, which will be attended by at least half a million people. For this, a special site "Freedom to Navalny" was created with a map of the country, on which those wishing to go to the rally put an end to the city where they intended to go to the rally. For two months of the existence of the resource, over 438 thousand people expressed their desire to go to the rally.