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Ransomware group thegentlemen hits MatTek
MatTek — a manufacturing target operating in US has been listed by the thegentlemen ransomware group on 2026-07-23. 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 Organization | MatTek |
|---|---|
| Threat Group | thegentlemen |
| Summary | ***.com zoominfo.com/c/mattek-corp/109184324 MatTek Corporation is a pioneering biotechnology company founded in 1985 and headquartered in Ashland, Massachusetts, specializing in the development of innovative in vitro 3D reconstructed human tissue models. They produce advanced microtissues and cell culture products that are widely used by researchers to accelerate drug development, conduct toxicity testing, and replace traditional animal testing. Originally an independent leader in tissue engineering, the company was recently acquired by the global life science supplier Sartorius and now operates as a key part of their advanced biological models portfolio |
| Date of Breach | 2026-07-23 |
| Discovery Date | 2026-07-23 |
| Region | US |
| Target Domain | mattek.com |
| Business Sector | Manufacturing |
| Severity | MEDIUM |
Claim by thegentlemen
***.com zoominfo.com/c/mattek-corp/109184324 MatTek Corporation is a pioneering biotechnology company founded in 1985 and headquartered in Ashland, Massachusetts, specializing in the development of innovative in vitro 3D reconstructed human tissue models. They produce advanced microtissues and cell culture products that are widely used by researchers to accelerate drug development, conduct toxicity testing, and replace traditional animal testing. Originally an independent leader in tissue engineering, the company was recently acquired by the global life science supplier Sartorius and now operates as a key part of their advanced biological models portfolio
Posted by the thegentlemen threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.
Sources
Disclaimer
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