So the Ukrainians shrugged when the Russians hit the power grid again, in December 2016. That attack was briefer, but it hit the capital. And it showed that the Russians were learning. In 2015 they had gone after a distribution system; when they came back they had gone after one of Kiev’s main transmission systems. And when a company called Dragos unpacked the code, they found a new kind of malware, called “Crash Override,” that was designed specifically to take over the equipment in the grid.
