Chemical Provider, Diamond Chemical Hit in Cyberattack

July 2, 2026

INCIDENT

East Rutherford, New Jersey-based chemical provider, Diamond Chemical Co, LLC suffered a cyberattack last July and is now informing victims their personally identifiable information ended up stolen in the hack.
“On or about September 2, 2025, Diamond Chemical discovered suspicious activity on certain systems in our environment that led to a temporary network disruption,” the company said in a notice to victims. “In response, Diamond Chemical promptly began an investigation with the assistance of third-party specialists to determine what occurred.
In the ensuing investigation, the company found an unauthorized actor accessed certain systems between July 26, 2025, and September 2, 2025, and copied files without permission.

Incident Date

July 26, 2025

Estimated Cost

Unknown at this time

Type of Malware

No Malware identified

Threat Source

No threat source identified

Industries

Chemicals

Impacts

IT