A friend of mine never used a firewall (till last week) .. and for the past 2 years, his computer has been online all day (cable). I convinced him to use a firewall. But before the install, I checked his "status" on GRC. Only half of his ports were stealth, many were open. We use the same isp and there's kids scanning all the time. My question is, how come noone ever hacked his machine? I almost feel stupid for the time spent fine tuning my firewall.
merci!