An article in NY Times does not help to make it less hidden, particularly for German users. What is required is to inform every user individually and ask for hi

An article in NY Times does not help to make it less hidden, particularly for German users. What is required is to inform every user individually and ask for his/her permission to transmit the data to another party. Explicit permission (= informed consent) is necessary because this data transfer is not required to perform the service (see above).