Diamond Chemical Co, LLC experienced an external system breach, described as hacking, which occurred on July 26, 2025. The company discovered this breach on March 6, 2026. This incident was disclosed by Diamond Chemical Co, LLC via a notice to the Maine Attorney General.
The breach involved names and Social Security Numbers. One Maine resident was affected. The company offered 12 months of identity restoration services through Kroll.
Additional information may become available as the investigation continues, and consumer notification dates may be delayed.