Programmatically Adding Permissions to a Folder

I have an issue where I need to add give access to a folder for all authenticated users to store application related settings. I have found that this can be done with the below code...

var Info = new DirectoryInfo(settingsdir);
var Security = Info.GetAccessControl(AccessControlSections.Access);

Security.AddAccessRule(
    new FileSystemAccessRule(
        "Authenticated Users", FileSystemRights.Modify,
        InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
        PropagationFlags.None,
        AccessControlType.Allow));

The problem I have found is that "Authenticated Users" is a system account that is on windows however, on different language versions of Windows this account name is translated, for instance in Germany this account is called 'Authentifizierte Benutzer'. Is there a way to know the proper name of this account (with out the obvious of going through every language and finding the correct account name).