@cyberspook >A local network is a different use case, we are connected to the Internet now.
I've read of a shared system without security that was connected to the internet.
It was soon found that if you added a command to crash to system, vandals (connected over dial up) would soon get bored and do something useful instead.

>complete security solutions for convenience sake (the reason why antiviruses are so popular)
The whole concept of antivirus's is very strange to me.
You attempt to mitigate the problems of proprietary malware being run by running a "trusted" piece of proprietary malware?

Hmm, maybe I should add the signatures of ever single piece of proprietary software to clamav.

>a secure proprietary system is better.
"secure proprietary" is a huge oxymoron.