The OAIC alleges Medibank failed to act on multiple reports of vulnerabilities in its cyber security framework before a lack of multi factor authentication led to a major data hack of nearly 9.7 million past and current customers. The OAIC alleges Medibank failed to act on multiple reports of vulnerabilities in its cyber security framework before a lack of multi factor authentication led to a major data hack of nearly 9.7 million past and current customers. Health Insurance, Insurance, Cyber Crime Latest business news