Businesses and health insurance companies are trying to enter the health care system with the aid of new technologies. Their aim is the complete networking and digitisation of the industry – a business worth billions. A central component of this transformation is the collection and storage of patient information on a huge scale – this is supposed to make treatment quicker and more efficient. Many doctors see benefits for their own work and for the patient. However, critics believe it will undermine data protection, personal rights and the relationship between doctors and patients. Do new technologies offer more opportunities than risks?