Hilldun Corporation filed a breach notification with the Massachusetts Attorney General on December 19, 2026. The incident involved the compromise of personal information, including Social Security numbers and credit/debit card data, affecting Massachusetts residents. The company is offering complimentary identity monitoring services through Kroll and advising affected individuals on fraud alerts and security freezes. The specific nature of the breach (e.g., hacking, insider) is not detailed in the provided consumer notification letter.