Re: Wireless Internet Connection
If your wireless connection is not secure, then yes, someone could view the data you are transmitting, and they could use your conncetion. Is there a problem with that? Depends on you. The IP address you get will be directly from the router. Since it is coming from a router, it's whats called a private IP address. No one else will get it. Do some reading on WEP encryption. Also, research the wireless standards.
As for the MAC address, your wireless card does have one. Every piece of hardware networking device has them (network cards, usb network cards, wireless cards, etc). It's kind of like a SS for a human. It doesn't matter about the connection, your only as safe as you know. Safety is up to you, and if your new to computers, welcome to a world of problems and solutions. I would advise you to get a couple of books on computers, preferrably an A+ book. You can learn a lot from a book- and Google. Google is your best tool.
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