Illustration of a smiley left and a skull right, by wondertom.de

Imagine you'd like to build a database with not only every data you usually can get through user interaction with your service and the device where your app has been installed on, but with pictures of your user's faces, too. What a treasure trove in times of face recognition software.

But surely after all those breaches and hacks related to online services, you'd have a very hard time getting to this kind of data, right? Especially when you are based in ...