After I reported on the publicly-visible internal DR site for San Francisco's IT department, they added authentication requirements. Sort of. It's a Microsoft SharePoint site, and the SharePoint extensions are still visible. If it were me, I'd just take the site off the air.... After I reported on the publicly-visible internal DR site for San Francisco’s IT department, they added authentication requirements. Sort of.It’s a Microsoft SharePoint site, and the SharePoint extensions are still visible. If it were me, I’d just take the site off the air.