Partially. It depends on the kind of connection. One shouldn't just plug their computer into a modem that is not/ or not connected through a secured NAT router. I haven't found a link to it yet, but there was a test done by the makers of ZoneAlarm, where they plugged a fresh PC [straight] into the Internet, and had hack attempts immediately from all over the world; and some from their own zipcode. This stuff never dies. There's still Nimda and Code-Red, and Melissa, and... all floating around online.