© Lydia Albrecht, KIT

As mobile phone users, we are all subject to espionage on a daily basis. We know that. And, with every app we download and use – no matter which one – we explicitly give our consent to this espionage. Whether they’re messengers, games, fitness trainers or the pre-installed health app, they cost nothing. That’s what we think. They “only” cost our data and these are worth cash money for the app and advertising network operators. They know about our whereabouts, preferences for music and films, the shops we visit and what we buy, with whom we chat or phone and for how long. There are hardly any limits to the information about ourselves that we give away voluntarily.

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About the author

Author profile picture Petra Wiesmayer is a journalist and author who has conducted countless interviews with high-profile individuals and researched and written general entertainment, motorsports, and science articles for international publications. She is fascinated by technology that could shape the future of mankind and enjoys reading and writing about it.As an avid science fiction fan she is fascinated by technology that could shape the future of mankind and enjoys reading and writing about it.