 One particular concern could emerge from genetics and genomic data (Tavani 2004, Bruynseels &amp; van den Hoven, 2015). Like other data, genomics can be used to make predictions, and in particular could predict risks of diseases. Apart from others having access to detailed user profiles, a fundamental question here is whether the individual should know what is known about her. In general, users could be said to have a right to access any information stored about them, but in this case, there may also be a right not to know, in particular when knowledge of the data (e.g. risks of diseases) would reduce the well-being – by causing fear, for instance – without enabling treatment. With respect to previous examples, one may not want to know the patterns in one’s own shopping behavior either.