Download How do I know if a Wireless Network is Secure? – There is no way to guarantee complete security on a wireless network. However, there are precautions you can take to help minimize security risks when you use a wireless network. • Whenever possible, only connect to wireless networks that require a network security key or have some other form of security, such as a certificate. The information sent over these networks is encrypted, which can help protect your computer from unauthorized access. When you view available wireless networks in Connect to a Network, wireless networks that do not have security enabled will be identified with a yellow shield icon. Connect to a Network, showing the shield icon on an unsecured network.