wifi use hjglazy123 as password
Yes, definitely secure your connection.
"Fortunately, it's pretty easy to secure a wireless network system: you need to log in to your router, which is usually done by simply entering a special IP address in your Web browser (try 192.168.1.1 if the documentation that was included with the router doesn't explain). If that fails, you might need to hook the router directly to the computer via a USB cable, though those are definitely rare systems.
Once you've hooked up, you should find a multi-tab configuration tool that has one tab labeled "Security" or similar. Click on that and you should be able to find "Password" as an option or button. Click on that and it should give the options of WEP or WPA. I recommend that you choose WPA and use a long password - it's far more secure than WEP."
http://www.askdavetaylor.com/secure_wireless_network_connection_wep_wpa.html