Her choice of Stiviano as her new surname is interesting. According to ZabaSearch, there are zero Stivianos in the US. Even USSearch and Intelius draw blanks. I'd bet she did similar searches before making the name up.
But even having never heard the name Stiviano before, the average person, on hearing it, would assume it was Italian. That was probably her intent. Looking at her, it would fit.
She gave as her reason for wanting the name change, "Born from a rape case and having yet been fully accepted because of my race." A name like Stiviano would be good cover from that. A good way to veil her ethnicity.
But not quite as effective as that visor.