TVs and refrigerator part of botnet

Or more accurate a thingbot 

"This may be the first proven Internet of Things (IoT)-based cyberattack involving conventional household "smart" appliances."

"Bot-nets are already a major security concern and the emergence of thingbots may make the situation much worse" said David Knight, General Manager of Proofpoint's Information Security division. "Many of these devices are poorly protected at best and consumers have virtually no way to detect or fix infections when they do occur."

http://www.proofpoint.com/about-us/press-releases/01162014.php

So I guess F-Secure will have to extend the product family to also cover household appliances