Unlike Google, Shodan (Sentient Hyper-Optimized Data Access Network) does not search for websites but rather maps and data about systems and devices that are linked to the internet. On the Internet of Things (IoT) context, Shodan is often referred to as a search engine. Shodan, in its most basic definition, is an Internet of Things (IoT) programme that helps locate and catalogue gadgets that are linked to the web.   Maintains a tally of all computers connected straight to the web. Shodan is used by cybersecurity professionals as a weapon in the fight against cybercrime against people, businesses, and even public utilities. We may use Shodan to find any device that is connected to the internet and learn whether or not it is accessible to the public.