Many older IP cameras were shipped with "open" permissions by default, meaning they did not require a password to view the live feed.
Accessing a private camera feed without permission can be a violation of privacy laws (such as the Computer Fraud and Abuse Act in the US), even if the camera doesn't have a password. 🛡️ How to Protect Your Own Devices inurl+viewerframe+mode+motion
The "motion" hadn't been a stranger in a far-off land. It was the realization that the digital world has no walls. He realized then that while he was looking through these "viewer frames," someone else might be looking through a different one—one he had forgotten to secure. Many older IP cameras were shipped with "open"