Washington Post: A cyberattack just disrupted grid operations in the U.S. But it could have been far worse

"It’s the first time a digital attack is known to have interfered with electrical grid operations in the United States. And it was due to a relatively basic hack, raising the specter of what might happen if a sophisticated bad actor chose to launch a far more powerful attack, say, with the intent of shuting [sic] off electricity for millions of people."

https://www.washingtonpost.com/news/powerpost/paloma/the-cybersecurity-202/2019/05/06/the-cybersecurity-202-a-cyberattack-just-disrupted-grid-operations-in-the-u-s-but-it-could-have-been-far-worse/5ccf61eda7a0a46cfe152c3e/