In part one of this two-part conversation, John Riggi, the AHA's national advisor for cybersecurity and risk, talks with the FBI's Brett Leatherman, assistant director, Cyber Division, and Gretchen Burrier, assistant director, Office of Private Sector, about the FBI's new campaign against cyberthreats, the surge of cyberattacks in U.S. health care, and what hospitals and health systems can do right now to defend themselves.