It thought of itself as being disconnected from the Internet, but it was possible for somebody to smuggle a USB drive in there, or something like that, and software got in there that causes the centrifuges, in that case, to actually destroy themselves.
Pensaban que estaban desconectados de Internet pero alguien pudo poner allí de contrabando un USB, o algo por el estilo, y colocar un software que hizo que las centrifugadoras en ese caso se autodestruyeran.