Just wanted to check if I am being a bit sloppy with my Mac in terms of security. Obviously when I bought it I was aware there are effectivly no viruses etc. My mac is (wirelessly - WPA) connected to the internet via a adsl router with a firewall. The OSX firewall is on. I only have 1 account which is the administrator account which I do not have a password on. I leave the mac on all day (i would be at work) connected to the internet, it sleeps or shutdowns at night (sometimes it wakes up (seemingly) at random). Any extra security steps I should be taking?