I know that VKontakte is giving information and even messaging history about people to authorities on the first request. That what was happening in Belarus after election and protests related to "fair" election. People where requested to go to the KGB/Police. In "nice" conversation with "pleasant" people they saw messaging logs from VKontakte, movements history based on mobile phone data and etc. Requests from different country and VKontakte was still giving that information for free.
Good job, Pavel. Talk more about Privacy now.