I would like to prevent users of a Sharepoint website that have limited rights to be able to see all the users. Right now in the top right menu of the user where "welcome..." is written he can click own settings. Then the screen will switch and in the yellowish bar in the top area above "User Information" you have a small written navigation line that is like (try to translate): Webpage > Users and Groups > User Information. If the user then clicks on the middle "Users and Groups" he will finally see the quick menu left offering "All users" to him as well as all the groups including those he does not belong to. And I already while creating the groups chose the option that only group members should be able to see the group.
