http://wccftech.com/wifi-wpa2-encryption-broken-all-devices-at-risk/

WiFi security is vulnerable to hacking; WPA2 leaves traffic open to eavesdropping

WiFi may not have been a secure connectivity option, as a latest research has revealed that the key encryption protocol may have been broken. WPA2, the security protocol used to protect WiFi connections has been broken, potentially putting millions of users at risk. If the risks are even close to be true, this may result in a Bluetooth-like situation where users are asked to keep it turned off until they need to use it. However, considering our dependency on app refreshes and notifications, this is not a viable way out.