The genome – the final frontier – or just a complex mess of letters? Somewhere in there, our eye or skin color is hidden. But also, diseases can be diagnosed or predicted by analyzing the genome. More and more research is committed to finding clues for diseases in our genes. The opportunity is clear: If I know about a disease I might get ahead of time, I could possibly intervene before it starts. Yet: How accurate are these predictions and how meaningful are they? And more importantly: What happens to my genetic data once it has been decoded?