I’d like to recommend folks look at this article on MakeUseof.com
7 Top Firewall Programs To Consider For Your Computer’s Security
Windows built-in firewall is, in my opinion, lame compared to the free programs available to us and this article describes them well. If you don’t understand what a firewall is or why you need one or how to use yours, have a short read on this page.
Something to discuss at a coming meeting perhaps? 🙂