Aflac identified suspicious activity on its U.S. network and initiated response measures. Despite the breach, the business remain

The U.S. health insurance giant said it is not yet sure how many customers are impacted by the cybersecurity breach.

Aflac, which provides supplemental insurance to around 50 million individuals whose expenses are not covered by their primary providers, said it was not yet known how many customers are affected by the data breach but that the personal data includes customers' claims,