The chaos ransomware group listed corematerials.com on its data leak site on 2026-08-28. Country: US Sector: Manufacturing Domains named: corematerials.com Claim as published on the leak site: Core Materials (corematerials.com) — Countdown to Publication Management at Core Materials has chosen to completely ignore all attempts to establish a constructive dialogue regarding their security breach. Silence will not make this situation go away. Since leadership refuses to engage, we are m…