Android features revealing the list of Wifi networks
This leads to the risk that users can be monitored and recorded the places that have been and Wifi connection on the phone such as " Ms. X ", " Mr. Y's apartment " . etc.
However, it is not difficult to prevent this feature from working, just go to the " Advanced Wi-Fi " settings and disable the " Keep Wi-Fi on during sleep " feature to prevent the device from checking. Wifi network list even in sleep mode. In return, you will see a slight increase in battery life.
Turn off Keep Wi-Fi on during sleep mode
Devices running iOS 6, 7, 8 of Apple are not affected by this error, although EFF has reported a number of data leaks in devices running iOS 5. Laptops run the system. OS X or Windows 7 are also likely to be affected, but they do not have a Sleep Mode protocol similar to Android so the possibility of data leakage is much more limited.