In-brief: A researcher studying the workings of a wireless-enabled drug infusion pump by the firm Hospira said the device utterly lacked security controls, making it “the least secure IP enabled device” he had ever worked with. His research prompted a warning from the Department of Homeland Security. 

https://securityledger.com/2015/05/researcher-drug-pump-the-least-secure-ip-device-ive-ever-seen/