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Listed on a ransomware leak site

Hanzestrohm

hanzestrohm.nl

Hanzestrohm was listed on the INC Ransom leak site on Aug 19, 2023. Brandefense has recorded 2 separate claims against it. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
INC Ransom
First listed
Aug 19, 2023
Claims recorded
2

2 Leak-Site Claims.

INC RansomConfirmed claim
Posted on the leak site
Apr 23, 2024
Collected by Brandefense
Sep 14, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Hanzestrohm is a group of companies offering specialist products and services from a technical brand portfolio. The Hanzestrohm companies have in-depth know-how in the fields of building solutions, industrial solutions and infrastructure solutions. As an independent family business founded in 1951, Hanzestrohm, with approximately 140 employees, serves customers from Zwolle (head office), Alphen aan den Rijn and Zwijndrecht.
INC RansomConfirmed claim
Posted on the leak site
Aug 19, 2023
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated
Leak-site post text, written by the group
say hello martin! you have very bad it specialists

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
verveba.com \
verveba.com
INC RansomUSUnited StatesTelecommunicationsNot stated
fairfeelegalservices.com
fairfeelegalservices.com
INC RansomUSUnited StatesConsultingNot stated
nowaszkola.com
nowaszkola.com
INC RansomPLPolandEducation and ResearchNot stated
coopecaja.fi.cr
coopecaja.fi.cr
INC RansomCRCosta RicaFinancial ServicesNot stated
FINANCIAMENTO LTDA
lexcursos.com.br
INC RansomBRBrazilManufacturingNot stated
Wolf & Sofsky GmbH
wolfusofsky.de
INC RansomDEGermanyConstructionNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
GTL Concreto e Logística LTDA
gtlconcreto.com.br
EmperadorBRBrazilManufacturing2 GB
POWERsonic Industries Inc.AuroraCACanadaManufacturingNot stated
SMIC US Company (Sunnyvale, CA, US arm of Semiconductor Manufacturing International Corpo...
smics.com
N0nCNChinaManufacturingNot stated
Pengurusan Aset Air Berhad
paab.my
QilinMYMalaysiaEnergy and UtilitiesNot stated
Pergande
pergande.de
QilinDEGermanyManufacturingNot stated
Luzco Ilumination
luzco.es
EmperadorESSpainEnergy and Utilities1.4 GB

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.