And then your neighbor spins up an unprotected network or something like xfinity which they could have a deal with and it connects there and phones home anyways.
And what exactly would they use that particular access path for ?
I could see a threat if the TV had access to the internet and could establish a TLS tunnel or similar from the mothership, and execute commands on my LAN (or IoT network as it stands), and report back. That could establish a command & control channel that could potentially orchestrate an attack on my infrastructure via the TV.
However, reporting that "network X exists and has these devices" over a different network complicates things a fair bit. In theory they could still use the TV as a command and control platform, but it would have to switch networks between my closed network and the open network in order to execute commands and report results. Not saying it's impossible, just very unlikely.
Besides, the TVs are not alone in being cut off from the internet. I have two IoT networks, one for trusted devices (AppleTVs, Sonos, and the likes), and one for untrusted devices like TVs. They run on different VLANs, and anything on the untrusted IoT network can pretty much only talk to itself (client isolation) and the gateway, and there's no internet and no open ports to any other VLAN.
And what exactly would they use that particular access path for ?
I could see a threat if the TV had access to the internet and could establish a TLS tunnel or similar from the mothership, and execute commands on my LAN (or IoT network as it stands), and report back. That could establish a command & control channel that could potentially orchestrate an attack on my infrastructure via the TV.
However, reporting that "network X exists and has these devices" over a different network complicates things a fair bit. In theory they could still use the TV as a command and control platform, but it would have to switch networks between my closed network and the open network in order to execute commands and report results. Not saying it's impossible, just very unlikely.
Besides, the TVs are not alone in being cut off from the internet. I have two IoT networks, one for trusted devices (AppleTVs, Sonos, and the likes), and one for untrusted devices like TVs. They run on different VLANs, and anything on the untrusted IoT network can pretty much only talk to itself (client isolation) and the gateway, and there's no internet and no open ports to any other VLAN.