Provided are techniques for generating a temporary data access token for a subset of data for a specific period of time for a non-registered user who did not register with a computer providing access to the subset of the data. In response to the non-registered user attempting to access the subset of data with the temporary data access token, it is determined whether the temporary data access token is valid for the subset of data based on the specified period of time. In response to the temporary data access token being valid, the subset of data is provided to the non-registered user. In response to the temporary data access token not being valid, access is denied to the subset of data by the non-registered user.