OK, I'm no network guru like Steve but can stumble through. I'm having a conversation with an out of state friend about security aspects. Even though it is a hassle he refuses to use anything wireless as he thinks that wireless is more easily hacked. I don't agree but could easily be wrong.
In my thought it does not matter whether a connection is wired or wireless as to an internet connection in relation to the potential of an infection. In my opinion is that in either case it all boils down to the system security. Am I wrong?
He is also interested in the theory of a system for disabled people for home automation. This would be a closed system not using the internet for communication between devices. Yes, I know, they are already out there but due to his belief of wireless being more easily hacked he wants everything wired. To me it still comes down to whether the system is secure and is not a factor of wired or wireless. Again, am I wrong?
In my thought such a system would be no different than any other as to security. It would boil down to the security on the driving system and how the router is setup. I don't know about all routers but mine can be set to only allow access to designated devices. If a device tries to connect that is not on the router's white list it is automatically blocked.
Any thoughts would be appreciated.
<edit>As an add-on about my router, and I'm sure many others, it has a guest mode that works like a connection in a fast food place. It allows access after entering a password that works fine but is totally isolated from anything else connected to the router. It is sort of like an isolated sandboxed connection in that it works but is not really there in relation to any other connected device.