REUTERS

Two months following the publication, in December, Surkov's Chief of Staff Aleksandr Pavlov resigned and this resignation could be directly linked to the controversial leak of correspondence, Russian newspaper Vedomosti reported, citing its own sources.

Surkov's friend made it clear that Pavlov had actually left the office, but did not tell about the motives, adding that he "heard about the claims against him to work." The journalists failed to contact Pavlov.

Read alsoPutin's aide preparing "DPR-LPR"'s accession to Russia – TymchukAs UNIAN reported earlier, a group of Ukrainian hackers CyberjJunta claimed it had hacked emails of Vladimir Putin's aide Vladislav Surkov and published copies of the documents that include measures to destabilize the political action in Ukraine, which had to result in early parliamentary and presidential elections.

October 26, Putin's spokesman Dmitry Peskov told reporters that Surkov did not use e-mail, therefore the Ukrainian hackers could not have stolen his electronic correspondence.

Read alsoSurkovLeaks2: Secret Minsk agreementsAdvisor to the Minister of Internal Affairs of Ukraine Zorian Shkiryak November 4 reported that the correspondence of Vladislav Surkov, published by CyberJunta, was genuine, which was confirmed by experts from the Ministry of Interior, the Security Service, as well as a number of highly reputable international professional organizations.