This article is alarming:
“US says 23 pipeline operators were targeted, of which 13 were successfully compromised.” I am going to do a synopsis-style argument about the average U.S. citizen who does not realize the depth of the cyber attack issue.
US says Chinese hackers breached 13 pipeline operators between 2011 and 2013 – The Record by Recorded Future
There are also Russia, Ukrainian, and Iranian groups mentioned in this article.