Two weeks after Trend Micro published its alarming addendum to Hultquist’s findings, DHS sounded the sirens further. Sandworm, the agency warned in an October 29, 2014, security advisory, wasn’t just after General Electric’s clients. It was also targeting clients of two other industrial control software makers: Siemens, the same company the United States and Israelis had hijacked in the Stuxnet attack, and Advantech, one of the leading “Internet of Things” enablers in the world.
