(38)Offerors and persons seeking admission to trading of crypto-assets other than asset-referenced tokens or e-money tokens should act honestly, fairly and professionally, should communicate with holders and prospective holders of crypto-assets in a manner that is fair, clear and not misleading, should identify, prevent, manage and disclose conflicts of interest, and should have effective administrative arrangements to ensure that their systems and security protocols meet Union standards. In order to assist competent authorities in their supervisory tasks, ESMA, in close cooperation with EBA, should be mandated to issue guidelines on those systems and security protocols in order to further specify those Union standards.