Shodan is the world’s first computer search engine that allows the hackers, penetration testers, security researchers and cyber security professionals to search the Internet for computers and devices.
Shodan can find devices based on city, country, latitude/longitude, hostname, operating system and IP address, etc.
Shodan search engine has recently been used by security researchers in Finland to find thousands of unsecured Internet-facing SCADA systems in that country.
The researchers found 2,915 exposed systems running functions from building automation to transport and water supply. The researchers claimed that many systems were vulnerable through their remote user interfaces.
This is a serious cyber security lapse that must be urgently taken care of. Otherwise crackers can misuse this publically available information for nefarious activities.