The data privacy officer is the best person to notify in case of a new malware that has severely impacted industry peers with data loss. The data privacy officer is responsible for ensuring that the enterprise complies with the applicable privacy laws and regulations, and that the personal data of the customers, employees, and other stakeholders are protected from unauthorized access, use, disclosure, or destruction. The data privacy officer can assess the potential impact of the malware on the enterprise’s data privacy obligations and risks, and coordinate the appropriate response and remediation actions. The customer database manager, the customer data custodian, and the audit committee are not the best persons to notify, as they do not have the same level of authority, responsibility, and expertise as the data privacy officer in dealing with data privacy issues. References = CRISC Review Manual, 6th Edition, ISACA, 2015, page 191.