A cyber security firm documented the spamming campaign of a zombie network comprised not only computers but also media players, smart TVs, and at least one refrigerator. 100,000 Internet-connected things were involved, sending over 750,000 spam emails in total. The attack constitutes the first ever botnet campaign in which hackers exploited The Internet of Things, a concept where everyday items like alarm clocks, toasters, and showers become connected to and interact with one another over the Internet.”]