Verdict
Traditional IP camera setup often required manual IP configuration or "searching" for devices on a local network. Modern cameras, such as those from Amaryllo or Digital Watchdog , use QR codes to automate this process.
The beauty of the "QR-to-Telegram" workflow was its isolation. Most IP cameras "phone home" to servers in distant countries. Elias had blocked those pings at the router level. His camera was "blind" to the internet, except for the specific instructions sent via the bot. But then, the bot sent a message he hadn't programmed.