Description: The California Office of the Attorney General reported that Carnival Corporation & PLC experienced a data breach involving unauthorized access to employee email accounts between April 11, 2019, and July 23, 2019. The incident potentially compromised personal information including names, addresses, Social Security numbers, and financial information, affecting an unspecified number of individuals. The breach was reported on March 3, 2020.

Description: The Maine Attorney General's Office reported a data breach involving Carnival Corporation on October 16, 2020. The breach occurred on August 4, 2020, due to an external system breach (hacking), affecting approximately 37,500 individuals in total, with 8 residents specifically impacted. Notifications to potentially affected individuals began on October 13, 2020, following the discovery of the breach on September 29, 2020.

Description: The California Office of the Attorney General reported on October 18, 2021, that Carnival Corporation and plc experienced a data breach with unauthorized access to email accounts detected on March 19, 2021. The impacted personal information may include names, addresses, phone numbers, passport numbers, and health information, but the total number of individuals affected is unknown.

Description: On August 15, 2020, Carnival Corporation and plc experienced a data breach due to unauthorized third-party access to its IT systems. The incident, reported by the California Office of the Attorney General on February 4, 2021, exposed sensitive personal information of both guests and employees. Compromised data included names, addresses, passport numbers, and Social Security numbers—highly sensitive identifiers that could lead to identity theft, financial fraud, or targeted phishing attacks. The breach underscored vulnerabilities in Carnival’s cybersecurity defenses, raising concerns about the protection of customer and employee data. Given the nature of the stolen information, the incident posed significant risks of long-term reputational damage, regulatory scrutiny, and potential legal liabilities. The exposure of passport and Social Security numbers, in particular, elevated the severity, as such data is often exploited in large-scale fraud schemes or sold on dark web marketplaces. Carnival’s failure to prevent the breach highlighted systemic weaknesses in safeguarding critical personal data against sophisticated cyber threats.

Description: Carnival Corporation, the world”s largest cruise line operator suffered a ransomware attack involving unauthorized access and encryption of data. A ransomware attack that gained access to and encrypted a portion of one brand's information technology systems was discovered by Carnival Corporation and Carnival plc, the business stated. Carnival anticipates lawsuits from its visitors, employees, and shareholders alleging that the attack may have involved improper access to customer and staff personal information.

Description: In May 2019, Carnival Corp., the parent company of Princess Cruises and Holland America Cruise Line, fell victim to a targeted **ransomware attack** in Florida, USA. The incident began when hackers gained unauthorized access to an employee’s account, allowing them to monitor internal email traffic and identify high-value targets within the organization. The attackers then encrypted portions of Carnival Corp.’s IT systems, disrupting operations and potentially exposing sensitive corporate and employee data. While the full scope of the breach was not publicly detailed, the attack highlighted vulnerabilities in the company’s cybersecurity defenses, particularly around credential protection and email security. The encryption of critical systems likely caused operational disruptions, financial losses from recovery efforts, and reputational damage. The attack also raised concerns about the potential exposure of employee and customer data, though no large-scale data leak was confirmed in public reports. Carnival Corp. had to invest in incident response, system restoration, and enhanced security measures to mitigate future risks.

Description: In March 2021, Carnival Corp., a Miami-based cruise company, suffered a **ransomware attack** initiated via a phishing email. The attackers breached the IT system of one of its cruise liners, gaining unauthorized access to **personal data of both employees and customers**. While the intrusion was detected on **March 19th**, the company assessed that the **likelihood of misuse of the stolen data was low**. This incident was part of a recurring pattern, as Carnival Corp. had endured **multiple ransomware attacks over a two-year period**, highlighting persistent vulnerabilities in its cybersecurity defenses. The breach exposed sensitive information, though the full scale of the financial, reputational, or operational damage was not explicitly detailed in the report.

Description: In August 2020, Carnival Corp., a Miami-based cruise operator, fell victim to a **ransomware attack** targeting one of its brand’s IT systems. The attackers partially encrypted critical data files, exposing the company to potential legal and financial repercussions. The breach raised concerns over compromised guest, employee, and shareholder data, alongside regulatory scrutiny. This incident marked Carnival Corp.’s **second cyber-attack**, amplifying risks to its operational integrity, customer trust, and financial stability. While the full scope of data exposure (e.g., personal or financial records) was not explicitly detailed, the attack’s disruptive potential—including operational disruptions, reputational damage, and liability claims—positioned it as a high-stakes security failure with broad organizational consequences.