I have sensitive data, which are not (yet) supposed to be publicly shared. Is there a solution for such data?

Short Answer

Yes, there is a solution. 

Detailed Answer

You can choose to archive your data at one of our data centers but initially restrict access to them by putting a temporal embargo on the publication. In this case, you can choose flexible access rights for single users or groups of users. It is also possible to restrict access to part of the information on your data (e.g. if you have observational data of endangered species and don’t want to publish the exact geographical coordinates of the observations).