1.   Member States shall ensure that the competent authorities referred to in Articles 8, 13, 14, 15, 18, 20 and 22 cooperate with each other whenever necessary for the purpose of carrying out their functions and duties or of exercising their powers under the national provisions transposing this Directive. Those competent authorities shall also coordinate their actions in order to avoid possible duplication and overlap when applying supervisory powers and administrative penalties and remedial measures to cross-border cases.

2.   Member States shall ensure that competent authorities, on request and without undue delay, provide each other with the information required for the purpose of carrying out their functions and duties under the national provisions transposing this Directive.

3.   Member States shall ensure that competent authorities receiving confidential information in the exercise of their functions and duties under this Directive use that information only in the course of their functions and duties under the national provisions transposing this Directive. The exchange of information between competent authorities shall be subject to the obligation of professional secrecy referred to in Article 76 of Directive 2014/65/EU of the European Parliament and of the Council (24).

4.   Member States shall provide that all persons working, or who have worked, for the competent authorities and auditors or experts acting on behalf of the competent authorities are bound by the obligation of professional secrecy.

5.   Member States shall take the necessary administrative and organisational measures to facilitate the cooperation provided for in this Article.

6.   The EBA shall facilitate the exchange of information between competent authorities in the Member States and promote their cooperation.