While you're not supposed to use mobile data while connected to a Wi-Fi network, there are a few exceptions that could cause this to happen.

How secure is your mobile phone connection? This is a question Kathleen is asking, as she wants to know the difference between mobile data and WiFi security. "For my cellphone, is it more secure ...

Need internet while travelling or on the go? Discover smart ways to find and use free Wi-Fi safely, almost anywhere you are.