well

regardless of all the security u can have (looking at computer prices(ex:u can buy yrself a goodnetpc 4 like 1000euros (everything incl ups)
its still arisk when u have original tcks and samples n stuff

so i prefer to have a daw(not connected to the net) without antivirus
cuz works faster

and have a pcnet with all the antivirus firewalls etc

my point is this way u get a better system
less probs(u eliminate a lot of unnecessary system components etcetc)
---audiotuning
less conflicts ,less risk of stopping production to "clean up"
so on...