According to IIA guidance, when the internal audit activity investigates potential ethics violations in a foreign subsidiary, communication of any internal ethics violations to external parties may occur, but only with appropriate safeguards. This ensures that sensitive information is protected and that the organization complies with both local and international legal requirements. Cross-cultural differences and local laws must be considered, but the primary focus is on maintaining appropriate safeguards during communication.
References: IIA Practice Guide - Auditing Ethics Programs, IIA Standard 2440 - Disseminating Results