WASHINGTON — The Department of Homeland Security told representatives of electric utilities Monday about a round of efforts by Russian hackers last year to target control systems for electric power plants and grids.

In an unclassified webinar, DHS officials said the hackers last summer got access to vendors who provide computer services to electric utilities, and used that to provide a way into power company control systems.
https://www.nbcnews.com/politics/pol...y-says-n894226