Article 100

1.   All information exchanged between the competent authorities under this Regulation that concerns business or operational conditions and other economic or personal affairs shall be considered confidential and shall be subject to the requirements of professional secrecy, except where the competent authority states at the time of communication that such information may be disclosed or such disclosure is necessary for legal proceedings or cases covered by national taxation or criminal law. 2.   The obligation of professional secrecy shall apply to all natural and legal persons who work or have worked for the competent authorities. Information covered by professional secrecy may not be disclosed to any other natural or legal person or authority except by virtue of Union or national legislative acts.