Many older IP cameras and embedded devices used SSI to dynamically generate pages that displayed the camera feed. Because these devices had limited processing power, they used simple server-side includes to embed the live video stream directly into the HTML page. Finding an index.shtml file often meant you found the direct landing page for a device's control interface.
Don't put your IoT devices on the same network as your personal computers. Create a "Guest Network" or a dedicated VLAN (Virtual Local Area Network) for smart devices. This limits the damage if a smart device is compromised. inurl view index shtml 24 link
This is the single most important step. Never leave the default username and password on any device. If the device does not allow you to change the password, consider returning it for a more secure model. Many older IP cameras and embedded devices used