Connected medical devices could be a direct threat to patients, as these devices could be targeted by hackers. A lot of medical devices nowadays get connected either directly to the internet or via an app. You could think off implantable defibrillators (ICD), pacemakers, insuline pumps or all kind of other medication supplying devices.

The original document can be found here: http://www.fda.gov/downloads/MedicalDevices/DeviceRegulationandGuidance/GuidanceDocuments/UCM482022.pdf

More background here: http://www.technewsworld.com/story/83042.html