Hackers are able to exploit any electronic device to serve a malware of to compromise a poorly protected network. Many electronic cigarettes can be charged over USB, using a special cable or by inserting one end of the cigarette directly into a USB port. The made in China e-cigarette had malware hardcoded into the charger, and when plugged into a computers USB port the malware phoned home and infected the system. A security consultant for Trend Micro also consider plausible the story reported on Reddit.”]
Source: http://securityaffairs.co/wordpress/30427/hacking/electronic-cigarettes-serve-malware.html