May 12, 2017

Dear HPH Sector Colleagues,

HHS is aware of a significant cyber security issue in the UK and other international locations affecting hospitals and healthcare information systems. We are also aware that there is evidence of this attack occurring inside the United States. We are working with our partners across government and in the private sector to develop a better understanding of the threat and to provide additional information on measures to protect your systems. We advise that you continue to exercise cyber security best practices – particularly with respect to email.

Office of the National Coordinator for HealthIT on behalf of Laura Wolf,

Critical Infrastructure Protection Lead

HHS-ASPR-OEM