"This alert [from the Department of Homeland Security and the Federal Bureau of Investigation] provides information on Russian government actions targeting U.S. Government entities as well as organizations in the energy, nuclear, commercial facilities, water, aviation and critical manufacturing sectors."
— Joint DHS and FBI memorandum, March 15
One curiosity of the cyber age is that the American public seems relatively unconcerned by what, arguably, is the biggest threat from the internet: attacks on the nation's "critical infrastructure" — the electric grid, payment networks and water systems, among others.