This is the fourth time in a bit over a year that Carnival s admitted to breaches, with two of them being ransomware attacks. Attackers accessed personal, financial and health information belonging to guests, employees and crew. Carnival had already revealed that it was the target of a ransomware attack on Aug. 17, two days after the attack. Security experts question what, exactly, is up with Carnival’s defense against attacks like these. The cruise line’s history shows that it’s failed to take steps to protect itself from these attacks, experts say.
Source: https://threatpost.com/carnival-cruise-cyberattack/167065/

