This is the smoking gun. "Viewerframe" is a common filename or directory name used by web-based video surveillance software. Specifically, it is frequently associated with Trendnet and Mobotix IP cameras, as well as various generic Linux-based streaming servers. When a developer names a file viewerframe.html or viewerframe.php, they are almost certainly building a live video player interface.
Let us be unequivocal: Executing this search string with malicious intent is illegal in most jurisdictions.
Accessing a computer system (including a web-enabled camera) without authorization violates laws such as the Computer Fraud and Abuse Act (CFAA) in the United States, the Computer Misuse Act in the UK, and similar legislation globally.
The use of this query highlights a significant era of cybersecurity negligence often referred to as the "Internet of Unpatched Things."
So where does "hotel hot" fit in?
This is a linguistic hack used by researchers and curious individuals to filter results. Here is the breakdown:
The Reality: When you run this search, you aren't finding a list of hotels. You are finding live, unsecured video feeds inside hotels. You might see a reception desk, an empty hallway, or—in worst-case scenarios—views into private areas.
inurl:viewerframe mode motion
Why does mode=motion specifically make this dangerous? It changes the behavior of the video encoder.
Standard live streaming (mode=live) requires constant bandwidth. A hotel with 20 cameras streaming continuous 1080p video would saturate their uplink. To save bandwidth, manufacturers implemented mode=motion. In this mode, the camera sits idle (sending 1 frame per second or less) until a pixel change threshold is met. Then, it bursts into high frame rate.
The Security Flaw: In many cheap OEM cameras, the mode=motion parameter bypasses the authentication module because the developer assumed that "motion clips are less sensitive than live video." This is a catastrophic logic flaw. It assumes an attacker only cares about live video, forgetting that motion clips reveal who is moving and when.