I guess this means HA Dave won't be joining my Luddite society.
I am retired now. But I retired as a network administrator from one of the most secure (government) networks anywhere to be found. I sometimes have wondered how long I can stay current. But I am not ready for luddite meetings.... yet.
It's true.. EVERYTHING and anything can be hacked... or broken into. With that said... being a fairly large man... there are few residential doors in (north) America I can't just kick open. There has to be tens of thousands of men that can say the same. So... how can anyone sleep at night knowing just how vulnerable doors are?
We are always... just playing the odds.
Whereas the vulnerability may be great... the risk is almost nonexistent. Use recent and good routers... use your own not the one provided by a cable or DSL service. Read and research the router until you truly understand the settings. Then set your security settings and build your firewall(s). Never log on to any computer as the administrator... UNLESS in is to perform an administrator function. Run antivirus software on everything... and regular scan each computer.
Then worry about those old analog doors that need protecting.