From the Kearny Hub:

“Ohio knows firsthand the dangers posed by cyberattacks,” said Megan Reiss and Kathryn Waldron, who are national security experts and researchers. “In 2016, hackers attacked Ohio’s election systems. The election system was not compromised — a Department of Homeland Security contractor detected the attack almost immediately — but Ohio was one of 21 states that found itself the victim of an election system hacking attempt that year.”