Developed by John Matherly, Shodan is a search engine designed to help users find certain pieces of software, determine which applications are most popular, identify anonymous FTP servers, or investigate new vulnerabilities and what hosts they could infect.
It also serves as a window into millions of unsecured online connections.
According to an article on CNN Money, Shodan runs nonstop, collecting data from approximately 500 million connected devices and services each month. Through a simple search on Shodan, a user can identify a number of systems that either have no security measures in place or generic passwords that can be hacked easily, leaving countless organizations open to hazardous attacks.
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