Obligations of the controller after the right to be forgotten has been applied
Where the controller has made the personal data public and is obliged pursuant to paragraph 1 to erase the personal data, the controller, taking account of available technology and the cost of implementation, shall take reasonable steps, including technical measures, to inform controllers which are processing the personal data that the data subject has requested the erasure by such controllers of any links to, or copy or replication of, those personal data.
Chapter III, Section 3, Article 17, Paragraph 2
Regulation's subject matter
Right to erasure ('right to be forgotten') (Article 17, Section 3, Chapter III)