If your data contain sensitive information or personal data, you will wish to prevent unauthorised persons gaining access to them. On the other hand, collaborating researchers need to have access. In addition to accessing your own data, you may want to access existing sources of data. DataHub will make sure that unauthorised individuals cannot retrieve data. Access controls are in place to ensure data is available to the appropriate researcher, depending on the consent given by the subjects. DataHub will also provide the possibility to browse through data on a sample level. This will offer you an opportunity to find out if suitable data for your proposed research are available.