Anyone in the world with internet access can visit your profile, and see the artwork you post. The Russian Federation visits everyone's pages, as do several other visitors who visit early and often and may be "bots" or search engines.
If you don't want that, I understand there is a way to create passcodes for galleries on your profile. If you create a passcode, then only people who have the passcode can visit. But that defeats the purpose of posting online, if you're trying to sell your work to the general public.