 Carnival, which operates AIDA, Carnival and Princess cruises among others, in a regulatory filing said the attack included unauthorized access to personal data of guests and employees. The attack adds to the woes of the company that has been already struggling with suspension of its cruises for months due to the COVID-19 pandemic amid travel restrictions across the world. Certain data files were downloaded during the attack, Carnival said, and added that there was no assurance that information technology systems of its other brands will not be adversely affected. 