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Listed on a ransomware leak site

MSB

msbuilders.com

MSB was listed on the Sarcoma leak site on Sep 29, 2025. Information as of Oct 19, 2026.

Country: SwedenIndustry: Education and Research
Updated continuously · figures as of Oct 19, 2026
Claimed by
Sarcoma
First listed
Sep 29, 2025
Claims recorded
1

Leak-Site Claim.

SarcomaConfirmed claim
Posted on the leak site
Sep 29, 2025
Collected by Brandefense
Sep 29, 2025
Data claimed
Not stated
Leak-site post text, written by the group
MSB MSB General Contractors specializes in disaster recovery services, offering support and solutions for clients affected by various emergencies. Their focus is on ensuring timely and efficient recovery processes for both residential and commercial projects. The company aims to serve a wide range of clients in need of recovery assistance and has a portfolio of completed projects demonstrating their capabilities. MSB is also involved in humanitarian activities, reflecting their commitment to community supportGeo: USA - Leak size: 66 GB Archive - Contains: Files,SQL

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
victim
victimsupport.org.uk
SarcomaGBUnited KingdomNon-profit and Civil SocietyNot stated
GYF
gyf.com.ar
SarcomaARArgentinaTechnologyNot stated
Propane Levac Inc.
propanelevac.ca
SarcomaCACanadaEnergy and UtilitiesNot stated
MecMatica
mecmatica.it
SarcomaITItalyTechnologyNot stated
Söllner
bedachungen-soellner.de
SarcomaDEGermanyUnknownNot stated
B&J Rocket Sales
bj-rocket.com
SarcomaCHSwitzerlandUnknownNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
The Akeeli Group
theakeeligroup.com
N0nUSUnited StatesEducation and ResearchNot stated
Llano Independent School District
llanoisd.org
QilinUSUnited StatesEducation and ResearchNot stated
Solid Trading B.V.
solid-fx.com
N0nNLNetherlandsEducation and ResearchNot stated
First Brothers Co., Ltd
firstbrothers.com
QilinJPJapanEducation and ResearchNot stated
Wellington College International School Bangkok
wellingtoncollege.ac.th
The GentlemenTHThailandEducation and ResearchNot stated
nowaszkola.com
nowaszkola.com
INC RansomPLPolandEducation and ResearchNot stated

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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.