Unlike Stuxnet, which specifically damaged Siemens PCS 7 systems, Duqu appears to be only collecting information about the design of other industrial control systems.

FORBES: Son of Stuxnet

That type of design uses three parallel arms to control the print head, enabling a device that's not only "fun to watch, " according to the group, but that can also quickly print high resolution objects with a large 9-inch by 11-inch build envelope.

ENGADGET