Penetration testers use inurl:viewerframe?mode=motion&top to demonstrate risk. If a company hires a tester to audit their security, finding an exposed camera feed proves that their network segmentation failed. The tester then reports the issue to CERT (Computer Emergency Response Team) or the ISP hosting the IP address.
: Security researchers use these "dorks" to identify misconfigured systems and help organizations secure their digital footprints. How to Secure Your Own Camera inurl viewerframe mode motion top
This looks like a search query used to find publicly exposed video surveillance or IP camera streams that have viewerframe in the URL and are operating in mode=motion (motion detection mode). Penetration testers use inurl:viewerframe