: They may require you to log in with your own VK credentials to "authenticate," which actually allows scammers to hijack your account.
may have snapshots of the profile from before it was set to private, though this is less likely for non-public figures. Check Mutual Friends : You can often still see a list of common friends view private vk profile link
: Toggle this in your settings to hide your wall and personal data from strangers. : They may require you to log in