The search term you provided, inurl:viewerframe?mode=motion , is a "Google dork"—a specific search string used by security researchers (and hackers) to find publicly accessible, unprotected internet-connected cameras.
It is vital to discuss the legality of using this search string. While the search itself is not illegal (you are just using Google), in almost all jurisdictions (Computer Fraud and Abuse Act in the US, Computer Misuse Act in the UK, etc.). inurl viewerframe mode motion my location top