We're putting together a simple site using the Twenty Thirteen theme, and we'd like to have a private forum. We've started off using Mingle, which looks OK (though we can't login new members yet - waiting for their support to advise).
Is there a simple way we can make the Forum visible (i.e. on the home page menu) but private, so that the forum entries, and discussions, aren't visible to the casual site visitor?
Thanks.