Re: What's an IOT device owner to do?
An increasing number of cameras seem to, in addition to manufacturer dyndns, have always-on unconfigurable tunnels back to the manufacturer, or some other "cloud" in China, so that the mobile apps will "just work" through quadruple NATs.
My router supports WAN capture and I figured out the external IP the camera connected to with that, and the router also let's me block IPs. Quite a complicated thing to do for most people though!
