Secure your wireless network
If you just set up a wireless network in your home without securing it, you're just asking for trouble. Neighbors or passersby can connect in seconds. Worse, Wi-Fi freeloaders may use your connection for illegal activities.
When the police come knocking, it'll be on your door. Your connection could also be used to send spam. If so, your Internet service provider will likely cut you off.
At USA Today.
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