A hacker created a worldwide map of more than 100,000 vulnerable devices after playing around with a scripting tool. The Carnas botnet was named after the Roman goddess that protected inner organs. Carna ran from June to October last year and was allegedly never detected. Though the project itself is illegal, the hacker claims the information may be useful for further study. He also claimed he didn`t interfere with the scanned systems, and didnt change any passwords.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/hacker-creates-worldwide-map-of-vulnerable-devices/