After a brief introduction of Vektis, Herman Bennema will use practical examples to show what kind of information can be extracted from the claims data (with a total value of over 850 billion euros) managed by Vektis. He will also discuss the legal bounderies within which Vektis operates and outline the dilemma we face in the Netherlands: how do we ensure a sound balance between, on the one hand, the privacy risk when using healthcare data and, on the other, the potential to keep healthcare affordable, accessible and of high quality based on data analysis.