Recently, officials from the Office of the National Coordinator for Health Information Technology (ONC) in the Department of Health and Human Services stressed the need for data security in connection with providers’ use of mobile devices for health care delivery. Approximately 81 percent of physicians use smart phones or mobile devices. The need for data security awareness is particularly acute with respect to small- and medium-sized providers who may not have an IT staff or third-party vendor overseeing mobile device security. The ONC is raising awareness by first describing to the industry scenarios in which providers’ mobile devices may be at risk and offering practical advice for mitigating the risk. Later this year, the ONC will test third-party vendor security tools for mobile devices and develop best practices for securing providers’ mobile devices.