https://www.reuters.com/article/us-usa-cyber-russia/russian-hackers-penetrated-networks-of-u-s-electric-utilities-wsj-idUSKBN1KE03F

Russian hackers gained access to the networks of U.S. electric utilities last year, which could have allowed them to cause blackouts, according to federal government officials, who said the campaign is likely continuing, The Wall Street Journal reported on Monday.