Even if the computers I own are already protected by good AV software? On my 2005 Dell Notebook (which I have not used often these days because it's now old) is secured by Microsoft Security Essentials with Windows firewall turned on. No problems so far. On my 2009 MacBook Pro, I'm using the firewall that comes with Snow Leopard OSX. No problems so far as well. Every time I use a device to connect to a router, I noticed that when I select which router to connect to wirelessly, the belkin router (bought back in 2004) that I own does not have a lock symbol on it compared to the other choices of routers that are near me, which are most likely owned by neighbors. The reason why I ask is because I'm worried something like this could happen to me someday. http://answers.microsoft.com/en-us/...lling-my/e8b7f442-d3e8-4fe3-b53a-c8d1eeee44d0