Is your smartphone really listening to you?

It all starts with the impression that an innocuous conversation has materialized on your device in advertising with a purchase suggestion. If you have the feeling that eavesdroppers have recorded your idea of ​​a trip or the brand of your next shoes, you are not alone and you are not paranoid either. Since the emergence of smartphones and 4G mobile internet networks a decade ago, heavy suspicions of espionage have weighed on these devices. Or more precisely on the applications installed on it – in particular social networks – which fairly easily obtain authorization to use the microphone.