The California Office of the Attorney General reported a data breach involving Matson Navigation Company on January 4, 2021. The breach occurred on October 14, 2020, due to a cyber-attack that may have compromised personal information including names, birth dates, and Social Security Numbers. The number of individuals affected is unknown.

On December 23, 2015, the Washington State Office of the Attorney General disclosed a data breach involving Matson Navigation Company, Inc. The incident stemmed from a missing device containing unencrypted personal information of 2,185 Washington mariners. The compromised data included highly sensitive details such as names, birth dates, addresses, telephone numbers, Social Security numbers, and bank account information. The device was last backed up on November 9, 2015, but its disappearance was not reported until December 7, 2015, leaving a critical window for potential exposure. The breach posed significant risks of identity theft, financial fraud, and unauthorized access to personal records, as the lost device held no encryption protections. While the exact cause of the device’s loss (theft, misplacement, or negligence) was not specified, the exposure of financial and personally identifiable information (PII) elevated concerns over long-term repercussions for the affected individuals, including potential phishing attacks, credit fraud, or misuse of Social Security data. The incident underscored vulnerabilities in data handling and device security protocols within the company’s operations.