Election Infrastructure Security Resource Guide: Cybersecurity and Infrastructure Security Agency U.S. Department of Homeland Security [open pdf - 2MB]
From the Document: "Americans' confidence that their votes count--and are counted correctly--relies on secure election systems. In recent years, American citizens have become increasingly uneasy about potential threats to the Nation's election infrastructure. Cyber intrusions to voting machines and voter registration systems diminish the overall public confidence elected officials need to perform their public duties and undermine the integrity of the Nation's democratic process. If left unaddressed, system vulnerabilities will continue to threaten the stability of our Nation's democratic system. Election infrastructure security is a priority for the Cybersecurity and Infrastructure Security Agency (CISA), based in the Department of Homeland Security (DHS). As the lead agency for securing the Nation's homeland, DHS, through CISA, is responsible for maintaining public trust and confidence in America's election system. CISA works directly with election officials throughout the United States to help them protect election systems by sharing timely and actionable threat information and offering cybersecurity services to safeguard their election systems."
Cybersecurity and Infrastructure Security Agency: https://www.cisa.gov/