https://www.shodan.io/search/facet?query=net%3A0%2F0&facet=p...
And we don't concentrate on a single type of device/ service (the article mentions SCADA). We identify everything from industrial control systems (1) to Minecraft servers (2). The news coverage makes it sound like we're skewed towards ICS, webcams or vulnerabilities but our focus is on providing a comprehensive view of what's connected to the Internet.
If you want to quickly check if your IP is exposing anything unexpected to the Internet simply visit:
If you see a 404 then nothing public was found. Note that this looks up information in the existing Shodan database - it doesn't launch a scan.
(1) Industrial control systems: https://www.shodan.io/search/report?query=tag%3Aics
(2) Minecraft servers: https://www.shodan.io/search?query=minecraft