All ransomware incidents
Ransomware group thegentlemen hits Henry Frerk Sons
Henry Frerk Sons — 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 | Henry Frerk Sons |
|---|---|
| Threat Group | thegentlemen |
| Summary | ***.com zoominfo.com/c/henry-frerk-sons-inc/44255454 Henry Frerk Sons (HFS Materials) is a premier masonry and plaster restoration supplier based in the Chicago region, with over 140 years of history. They specialize in custom matching and blending of historic mortars, concrete, and stone patching materials, alongside offering on-site volumetric ready-mix concrete services. The company provides a comprehensive range of building materials, including natural hydraulic lime, specialized cleaners, sealers, and preblended mortars for both historic preservation and new construction projects |
| Date of Breach | 2026-07-23 |
| Discovery Date | 2026-07-23 |
| Region | US |
| Target Domain | hfsmaterials.com |
| Business Sector | Manufacturing |
| Severity | MEDIUM |
Claim by thegentlemen
***.com zoominfo.com/c/henry-frerk-sons-inc/44255454 Henry Frerk Sons (HFS Materials) is a premier masonry and plaster restoration supplier based in the Chicago region, with over 140 years of history. They specialize in custom matching and blending of historic mortars, concrete, and stone patching materials, alongside offering on-site volumetric ready-mix concrete services. The company provides a comprehensive range of building materials, including natural hydraulic lime, specialized cleaners, sealers, and preblended mortars for both historic preservation and new construction projects
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.
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.