What is inurl:viewerframe mode motion?
This is a Google search operator used to find exposed web interfaces of network cameras (IP cameras) running certain firmware, particularly older D-Link, TRENDnet, or Foscam models. The string viewerframe is a common filename for camera live view pages, and mode=motion refers to a motion detection parameter.
To help you secure your own network or explore more about IoT safety: Specific camera brand you are concerned about?
80.http.get.title:"viewerframe"
He chose the latter.
Accessing private cameras without permission is a violation of privacy laws in many jurisdictions, including the Computer Fraud and Abuse Act (CFAA) in the US. Using these search strings to view private spaces is unethical and potentially illegal. Security researchers use these queries to identify vulnerabilities and notify owners, not for voyeurism.