(3)There is a history of cooperation between NCAs and national criminal investigation authorities in dealing with access to confidential information about supervised entities or supervised groups, within the meaning of Article 2(20) and Article 2(21), respectively, of Regulation (EU) No 468/2014 (ECB/2014/17), in accordance with national law. The conditions for such cooperation and for disclosure of confidential information to national criminal investigation authorities are largely determined by national law. However, Union law has certain implications for the conditions under which confidential information held by competent authorities, including the ECB, within the SSM may be disclosed to national criminal investigation authorities upon their request. Those Union law provisions establish, for example, the principle of sincere cooperation, the principles of cooperation in good faith and the obligation to exchange information within the SSM, the obligation to protect personal data and the obligation of professional secrecy.