The string is a specific Google Dork —a search query used to find indexed web pages that match a particular URL pattern. In this case, it targets older network security cameras (specifically those made by Panasonic) that have been inadvertently exposed to the public internet without password protection.
The search query inurl:ViewerFrame?mode=motion is a "Google dork"—a specific search string used by security researchers to find publicly accessible network cameras
admin/admin). Change this immediately upon setup.This is the specific directory name used by older IP camera firmware.
Shodan.io (the "search engine for the internet of things") provides a less intrusive way to see vulnerable cameras. It shows metadata without fetching the actual image stream.
When entered into a search engine, this command looks for specific patterns in a website's URL: