This term is commonly found in the URL paths of certain web-based video surveillance interfaces. Many IP cameras, DVRs (Digital Video Recorders), or webcams use filenames like viewerframe.html , viewerframe.asp , or viewerframe.php to display live video feeds.
Shodan is a search engine for internet-connected devices. Set up an alert for your hotel's public IP range with keywords like "viewerframe" or "motion." Shodan will email you if your devices become indexed. inurl viewerframe mode motion hotel verified