this post was submitted on 12 Nov 2023
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I'm an IT professional, specifically in infosec, and it's silly to go to those extremes. I have tons of smart home devices, and they're all perfectly secure since I run Home Assistant and block them from the internet with a firewall.
Do they tell you in their manual what ports they work with, or is there a website that will let you know based on a product?
The good thing is that you don't need to know which ports to block. You just set your firewall up to deny by default and then start whitelisting the things you want to allow.
Even easier if you put your "smart" devices in a separate network, then it's just:
Now you can surf the internet, control your devices and they can't phone home