@Goatboy: I've configured a wifi connection with a WPA2-PSK password. But I know nothing about ports.
@Sandbox: I'm glad to hear that my MAC/IP addresses are much less useful to skiddies if I'm on a wired connection. Thanks for the info.
@mRmasteRful: I don't actually know what they plan on doing with the info, but there's next to no money in my bank account anyways, lol.
I just wanted to say thanks for the assistance everyone. I'm tired of feeling so god-damned helpless in cyberspace, so I'm going to read through these forums and maybe tackle a mission or two.
I'm still going to be asking stupid questions, but at least I'll be making an attempt. Hopefully soon I won't fall prey to ignorant skiddies with fancy software.
See ya around, gents.