For many years, most of us have tacitly given carte blanche to big companies to let them have our personal data at their disposal. And our data are freely available ‘out there’. Global tech giants such as Amazon, Facebook, and Google, have profited hugely from this. In just a few years, they have grown into the largest corporations by being exceptionally good at gathering and exploiting all sorts of data about us and our behaviour. For this reason, data are spoken of as the most valuable reso...