SourceIt is a small server that looks like any of the other dozens in the same row. It is in a large room devoted to computers and computer storage, just like every other room in this industrial park building on Am Tower Street just outside the city of Nuremberg. That the grey building is surrounded by barbed wire seems to indicate that the servers' provider is working hard to secure their customers' data.
Yet despite these efforts, one of the servers is targeted by the NSA.