A bill to require Commander of the United States Cyber Command and others to conduct a tier 1 exercise of support to civil authorities for a cyber incident, and for other purposes.

National Cybersecurity Exercise Act of 2018 This bill requires the U.S. Cyber Command, the U.S. Northern Command, and other Department of Defense commands or components, consistent with the recommendations made by a Government Accountability Office report, to conduct a tier 1 exercise of support to civil authorities for a cyber incident.