Article 18 5.

The Commission shall adopt, by means of delegated acts in accordance with Article 27(2a), (2b) and (2c), and subject to the conditions of Articles 27a and 27b, measures in order to take account of technical developments on financial markets, to take account of developments in information and communication technology and to specify the requirements laid down in paragraphs 1 to 4. The Commission shall, in particular, specify the types of financial institution through which a debt security holder may exercise the financial rights provided for in paragraph 2(c).