this post was submitted on 14 Jan 2024
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Just put the device on a separate wifi without internet access, or look at the "child protection" features of your router. Ours can put devices based on their MAC into "access groups" which range from "full access" over "internet from <time> to <time>" to "no internet at all".
The article mentions that his router is probably to blame.
This is not just about the amount of data. I'm well aware that the measured amounts were totally off. Nonetheless, it is about being allowed to send any kind of data to the outside at all. And while it is probably quite convenient that you can get a message when a device has done a job, it is sufficient that you as the owner gets it, not anyone outside.
If you worried about data leaving the house, just don’t connect the thing to the internet. Remote notifications and remote diagnostics for these LG appliances require access to the internet.
If you want to keep that stuff local, just don’t set it up. The dishwasher will beep when it is done and display error codes when something is busted. Putting it on a closed LAN won’t do anything for the appliance.
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Luckily, most embedded devices lack the smart to attach to two networks at the same time. So you keep it locked into a network where it can only do your bidding, and it won't listen to anyone else. Unless they built in some very crazy and nefarious code and drive around with network enabled cars in the owners neighborhood.
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No need for an extra router. I just put those device into the "has no internet access" group. It is one of those "Parental Control" things. Every device inside the net can see and talk to it, but itself cannot talk to anything outside.
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That's what "configuration backups" are for. You've got some, don't you?
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