Sebastien Burel/Dreamstime.com. By considerable measure, the largest known animal on Earth is the blue whale. Mature blue whales can measure anywhere from 75 feet (23 m) to 100 feet (30.5 m) from head to tail, and can weigh as much as 150 tons (136 metric tons).
Click Network and Sharing Center. In the Connections section, click Wi-Fi. Click Wireless Properties. Click the Security tab. If the Security type is something such as WPA2, your network is secured. If the Security type is No authentication (Open), your network is not secured.
1 Motorola's Wireless Broadband Indoor/Outdoor Solution âMotorola, Inc.  Wi-Fi Protected Access (WPA) is a security standard for users of computers equipped with Wi-Fi wireless connection. It is an improvement on and is expected to replace the original Wi-Fi security standard, Wired Equivalent Privacy (WEP).