Shodan is a search engine for everything on the internet web cams, water treatment facilities, yachts, medical devices, traffic lights, wind turbines. CNN called it the “scariest search engine on the Internet” in 2013. CNN.com called it “the scariest” search engine in 2013, but it’s legal to use Shodan to find vulnerable systems. Shodan gives us greater visibility into the insecure, interconnected cyberphysical world in which we all now live.”]