pp46 - 4:00 pm on Nov 15, 2012 (gmt 0)

What if grandma opens an e-mail attachment with a Linux capable virus? They do exist.

NO Linux distrib will install something automatically, a "linux capable virus" would have to be an executable script and as far as I know nothing you receive by mail can be executable you have to chmod it and for that you need a root or sudo pwd..Before installing it.