Why should I secure my wireless network?

Wireless networks are more flexible than wired ones, but they can also be more vulnerable to hackers or malicious software (such as worms). Because wireless networks use radio waves that can pass through walls, your network's signal could go beyond the boundaries of your home. If you don't try to secure your network, people with computers nearby might be able to access the information stored on your network computers and use your Internet connection to get onto the web. By setting up a security key on your wireless network, you can help protect it from unauthorized access.