going on the internet is like
a baby on a workplace
everywheretoxic gasses and dust that can harm the baby
but if ya shield the baby it can stay there
same with internet
a good firewall will block the virusses
and offcourse some virusses are going to slip by
it was just a coincidence a virus slipped by and got detected while you were on the dx site
al least that's how i see it