Local Network Security
The cluster discusses whether private or local networks can be trusted or should be treated as untrusted like the internet, emphasizing the need for firewalls, VLANs, isolation, and zero-trust practices to secure devices and appliances.
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It may still be sensible if you only expose it to private networks.
You can network things without exposing them to the world.
Don’t put it on a network, but also don’t allow it to reach an untrusted network.
If you're trusting the network to be "secure", you're doing it wrong.
Because of security. You do not know how exploitable the setup is. There were instances when these appliances connected to open Wifis and called home. Imagine same but attacker doing a drive by with open Wifi.
Probably. I think part of his point is that these days it's very hard to have networks completely isolated from the internet. If there is only one host connected to both the internet (or a network that connects to it) and that proprietary network, it can act as gateway when compromised and unleash mayhem.
How is this a problem? Every network interface should be treated as public, meaning you must use encryption and firewall rules.
It shouldn't be. Treat the network as public, require credentials for any access whether it comes from inside or outside.
This is just bad security practice. You cannot trust the internal network, so many companies have been abused following this principle. You have to allow for the possibility that your neighbors are hostile.
Isn't it a bit overkill? it's not like you can access them from the internet if they're on the local network. No?