Recital (42)

At least the following information should be made available to the data subject: the identity of the controller, the existence of the processing operation, the purposes of the processing, the right to lodge a complaint and the existence of the right to request from the controller access to and rectification or erasure of personal data or restriction of processing. This could take place on the website of the competent authority. In addition, in specific cases and in order to enable the exercise of his or her rights, the data subject should be informed of the legal basis for the processing and of how long the data will be stored, in so far as such further information is necessary, taking into account the specific circumstances in which the data are processed, to guarantee fair processing in respect of the data subject.