Flying_Dutchman, on 11 June 2015 - 12:43, said:
That's a nonsense.
You might not have performance related problems, but no firewall and no antivirus = Trojans
100% guaranteed if you are in any way connected to the internet without those setup you will have dirty little Trojans or malware watching and recording your actions.
Whether someone does anything with the data they are recording is another story.
I have a 24gb 8 core music PC, this has no antivirus, no wifi card and has never been hooked to the internet. That's the only way to keep a PC clean in reality.