HackerFeeds
All ransomware incidents
C

Ransomware group N0n hits Cogent Biosciences, Inc.

MEDIUM
·Healthcare·US·2026-11-06

Cogent Biosciences, Inc. — a healthcare target operating in US has been listed by the N0n ransomware group on 2026-11-06. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.

Incident Report

Target OrganizationCogent Biosciences, Inc.
Threat Group
N0n
SummaryCogent Biosciences, Inc., a healthcare organization in the United States, was listed by the N0n ransomware group on its leak site on 2026-11-06.
Date of Breach2026-11-06
Discovery Date2026-11-06
RegionUS
Target Domain—
Business SectorHealthcare
Severity
MEDIUM

Claim by N0n

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]

Posted by the N0n threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.

Sources

Leak post (onion / Tor)

tor

http://nongzecboljwv3yfndkggsybsglfrkffw7bvk2zemuteoxe6etpusnad.onion#v-cogent

Open this URL in Tor Browser. Browsing leak sites carries real risk — view passively, never click further.

Disclaimer

HackerFeeds does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.