Setting up secure internet connection

how can i create a secure internet connection on my imac 10.5.8?
I notice when i click on the airport icon at the top of the screen there are other networks in the neighborhood that a listed but each one has a lock next to it requiring password. Any guidance would be great. thanks

In addition to Ralph's excellent advice, I've got a couple of questions:
What type of internet connection and modem do you have and who is your ISP?
If you have cable or FioS and the Mac is within ethernet cable distance from the modem, that type of connection is faster and more reliable (fewer signal dropouts than wireless).
Or are you trying to set up a wireless home network?
In that case, you need a wireless router; follow Ralph's suggestions. Most routers do not come with Mac-friendly setup software, so you will need to log into the router's website (should be in your manual and usually something like 192.168.x.x; user name and password usually preset, but should be changed once setup is complete). After logging in, you can go through the settings and security is best at WPA2.
+I notice when i click on the airport icon at the top of the screen there are other networks in the neighborhood that a listed but each one has a lock next to it requiring password.+
Or are you simply trying to use your neighbors' internet connection? You won't be able to.

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    Message Edited by meteor on 01-09-2008 05:58 AM
    ~~~Nobudy's Perfect , i try To Be So ! Each n every moment of maH LYF , AND I THINK dat wats make Me "Different" From others....~~~

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