The United States has not been hit by a paralyzing cyberattack on critical infrastructure like the one that sidelined Ukraine in 2015. That attack disabled the Ukrainian power grid, leaving more than 700,000 people in the dark.
But the enterprise IT networks inside energy and utilities networks have been infiltrated for years. Based on an analysis by the U.S. Department of Homeland Security (DHS) and FBI, these networks have been compromised since at least March 2016 by nation-state actors who perform reconnaissance activities looking industrial control system (ICS) designs and blueprints to steal.
Article Link: https://blog.vectra.ai/blog/most-attacks-against-energy-and-utilities-occur-in-the-enterprise-it-network