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What is Shodan? The search engine for everything on the internet

May 31, 2018

Via: CSO

Shodan is the search engine for everything on the internet. While Google and other search engines index only the web, Shodan indexes pretty much everything else — web cams, water treatment facilities, yachts, medical devices, traffic lights, wind turbines, license plate readers, smart TVs, refrigerators, anything and everything you could possibly imagine that’s plugged into the internet (and often shouldn’t be).

The best way to understand what Shodan does is to read founder John Matherly’s book on the subject. The basic algorithm is short and sweet:

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