You REALLY need to read this -
http://computer.howstuffworks.com/wireless-network.htm
I am presuming you have a Wifi connection at home?
That you have set up your AOL connection details?
Have you set up encryption on this connection.
If you're using an unprotected wifi connection - how protected is your machine?
If you aren't sure about your protection - try this site -
I test my protection fairly regularly here.
https://www.grc.com/x/ne.dll?bh0bkyd2
It's the Shields Up site.
I think you should read a bit more about wifi before hooking onto whatever connection.