When a camera is set to Mode=Motion , the web server embedded within the camera streams these JPEG frames directly to any connecting web browser. This is why, historically, simply finding the URL and opening it in a browser was enough to view the live feed.
Instead of exposing the camera directly to the internet via port forwarding, set up a Virtual Private Network (VPN) on your router. To view the camera remotely, log into the secure VPN first. Keep Firmware Updated inurl viewerframe mode motion network camera free
Most legitimate security researchers follow a simple rule: Responsible use includes: When a camera is set to Mode=Motion ,