I have a friend who has dared me to get into his computer. He is running a cable modem in Woodbury. I don't know which ISP. After boasting about all the benefits of this great high speed connection, I asked if he ran any kind of firewall. He told me that indeed, one was not necessary. His ISP told him he was covered. He also runs no kind of antivirus software. I told him "you're nuts", he told me "I double dog dare you to hack me". Alas, I have zero experience in this area, but I would love to prove a point. Any suggestions? Please, nothing too cruel.