William S. Hein & Co., Inc.

William S. Hein & Co., Inc. experienced a ransomware incident on April 10, 2024, where an unauthorized third party gained limited access to IT systems. Two Maryland residents were affected. Impacted data included names, addresses, dates of birth, Social Security numbers, driver's license numbers, passport numbers, and financial account information. The company engaged incident response professionals, notified law enforcement, and contained the access. Affected individuals are offered 12 months of credit monitoring.

William S. Hein & Co., Inc. reported a data breach occurring on April 10, 2024, discovered on November 12, 2024. Unauthorized third-party access impacted personal information including names, SSNs, driver's licenses, and financial account data for 417 individuals. The company notified law enforcement, engaged forensic professionals, and offered 12 months of credit monitoring. 2 Maine residents were affected.

William S. Hein & Co., Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-01-13. 3 Massachusetts residents were affected.

William S. Hein & Co., Inc. is a leading, family-run publishing company that has been serving the worldwide library community since the 1920s. Originally a renowned publisher of legal publications, the company has since expanded its services into academic, public, government, and corporate libraries, becoming a highly respected multidisciplinary publisher in multiple sectors. In the course of a successful cyber attack on this company, we have a large amount of confidential information at our disposal. More than 500GB. All financial documents, mail correspondence, agreements and contracts that are not subject to disclosure, personal data of employees. All this and much more will be published in case we do not come to an agreement.