1. The authorities of the Member States referred to in Article 49 shall collaborate closely in order to carry out their task and must for that purpose alone communicate to each other all information required.
2. Member States shall provide that all persons who work or who have worked for the competent authorities, as well as auditors and experts instructed by the competent authorities, shall be bound by the obligation of professional secrecy. Such secrecy implies that no confidential information which they may receive in the course of their duties may be divulged to any person or authority whatsoever, save in summary or aggregate form such that Ucits and management companies and depositaries (hereinafter referred to as undertakings contributing towards their business activity) cannot be individually identified, without prejudice to cases covered by criminal law.
Nevertheless, when an Ucits or an undertaking contributing towards its business activity has been declared bankrupt or i