this post was submitted on 09 Jul 2025
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homeassistant

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Home Assistant is open source home automation that puts local control and privacy first.
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[–] VitulusAureus@lemmy.world 7 points 4 days ago (31 children)

What kind of disaster specifically? I hear everyone discouraging from using WiFi for home devices, but never understood what the actual risks are.

[–] AtariDump@lemmy.world 21 points 4 days ago (19 children)

Let’s say your lightbulb(s) become comprised. A bad actor now has a toehold into your network.

Maybe they run a spam relay through the bulb. Maybe they attack your network by attacking the printer that hasn’t had a firmware update in years.

Point is, there’s someone with access to your network that isn’t you.

https://old.reddit.com/r/Ubiquiti/comments/1fjspoc/what_is_the_point_of_having_a_separate_devices/

[–] VitulusAureus@lemmy.world 2 points 4 days ago (18 children)

Right, thanks. But this can be easily resolved by:

  • Removing devices' access to WAN, which also vastly reduces the external actor's ability to compromise them in the first place.
  • Isolating devices from each other with internal firewall rules, allowing them to only interact with the hub host. Is this correct, or am I missing something?
[–] WhyJiffie@sh.itjust.works 2 points 3 days ago

firewall rules? who cares about firewall rules if the switch still forwards packets to the printer?

firewall rules only work on end devices, and routers when the destination is in a different subnet and broadcast domain.

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