Right now, there is not a way to make Profiles private, but we can look into developing that functionality. For now, users worried about privacy should avoid using their full names on their profiles (some combination of initials and first or last names might be good). Certain profile fields can be made visible to only yourself, to your friends on the Commons, logged in members of the Commons, or the default – to everyone.  To change profile field visibility, go to click on the “Change” hyperlink next to the text that reads: “This field can be seen by: Everyone Change.” Most, be not every field has this visibility setting.