SHODAN is the first search engine for Internet connected devices or in other words for Internet Of things.
It was designed by John Matherly in 2003 and launched in 2009.
SHODAN is like google but it provides information what google is not capable of for Hackers and IOT devices.
Major applications of SHODAN is
SHODAN detects the devices with provided time,location and its current user details in addition the device must be connected to internet.The devices may be any type of system,including business networks,surveillance cameras,Industrial Control Systems(ICS) and smart homes.