If you are streaming to a Facebook page (for example, your church’s Facebook page), the stream will be public. This means anyone in the world who finds your page can view the broadcast.
If you are streaming from your personal Facebook timeline, you will be able to choose whether the stream is public, viewable by your friends, or viewable only by you. For private testing we recommend selecting the “Show on My Timeline” and “Only Me” settings on the BoxCast event. You can toggle these setting later directly on Facebook.