The n0n ransomware group listed Cogent Biosciences, Inc. on its data leak site on 2026-11-06. Country: US Sector: Healthcare Claim as published on the leak site: clinical-stage biopharmaceutical (oncology) · United States | The open and closed claims analytics environment of a clinical-stage oncology company: millions of patient claim rows with patient, claim and provider identifiers and full diagnosis code detail, actively growing today | [NOT PAID — EXPOSED]