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Listed on a ransomware leak site

Unimicron

unimicron.com

Unimicron was listed on the Sarcoma leak site on Feb 11, 2025. Information as of Oct 19, 2026.

Country: TaiwanIndustry: Technology
Updated continuously · figures as of Oct 19, 2026
Claimed by
Sarcoma
First listed
Feb 11, 2025
Claims recorded
1

Leak-Site Claim.

SarcomaConfirmed claim
Posted on the leak site
Feb 11, 2025
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Unimicron Made up of three strategic business units (SBU), namely PCB SBU, Carrier SBU, and IC Test SBU, Unimicron is currently among the top PCB and carrier manufactures in the world and a major supplier of HDI PCBs and carrier for world advanced mobile phones. Manufacturing bases are mainly set in Taiwan (Taoyuan, Hsinchu), Shenzhen of South China, Huangshi of Central China, and Kunshan and Suzhou of East China-Plants in China specialize in mass production, while in Taiwan provide high-end products to serve the market. In addition, to instantly respond to the demands of customers, besides…

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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
PingCAP / TiDB Cloud
pingcap.com
FulcrumsecUSUnited StatesTechnologyNot stated
Amagi Media Labs
amagi.com
N0nINIndiaTechnologyNot stated
All Business Technologies (Fox Hill bookkeeping and tax practice)
allbusinesstechnologies.com
N0nUSUnited StatesTechnologyNot stated
Southwire
southwire.com
HelixUSUnited StatesTechnologyNot stated
Bay Alarm
bayalarm.com
HelixUSUnited StatesTechnologyNot stated
Taekwang Network
tkni.co.kr
EverestKRSouth KoreaTechnologyNot 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.