Personal weather stations can expose your Wi-Fi network
In the latest Internet of Things security blunder, personal weather station devices made by Netatmo were found sending users’ Wi-Fi passwords back to the company over unencrypted connections.
Netatmo weather stations can be used to monitor indoor and outdoor temperature, humidity, carbon dioxide levels and overall air quality. Users can see the data collected by their stations in real-time through an app installed on their phones, tablets or computers.
The public weather map on Netatmo’s website shows that thousands of such devices are installed around the world.
When the weather stations are first configured, users need to give them access to their Wi-Fi networks, so they can transmit sensor readings to the Netatmo cloud over the Internet.