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Listed on a ransomware leak site

TransUnion

transunion.com

TransUnion was listed on the ShinyHunters and RansomedVC leak site on Aug 1, 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
ShinyHunters, RansomedVC
First listed
Aug 1, 2023
Claims recorded
2

2 Leak-Site Claims.

ShinyHuntersConfirmed claim
Posted on the leak site
Jun 28, 2025
Collected by Brandefense
Oct 3, 2025
Data claimed
Not stated
Leak-site post text, written by the group
TransUnion is a global credit reporting agency that provides credit information and analytics services to businesses and individual consumers. It collects and aggregates information on over a billion individual consumers in over thirty countries including "Big Three" credit-reporting agencies in the United States. The data they handle includes credit history, credit scoring, and personal information protection services.
RansomedVCConfirmed claim
Posted on the leak site
Aug 1, 2023
Collected by Brandefense
Jul 11, 2025
Data claimed
Not stated

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
Vercel Inc.
vercel.com
ShinyHuntersUSUnited StatesHosting Service ProvidersNot stated
Abaco Informatica
abaco-informatica.com.ar
ShinyHuntersARArgentinaTechnologyNot stated
Correios
correos.es
ShinyHuntersESSpainTransportation and LogisticsNot stated
Ticketmaster
ticketmaster.com
ShinyHuntersUSUnited StatesMedia and EntertainmentNot stated
Somali Immigration and Nationality Agency (HSJ); Ministry of Justice and Constitutional Affairs
etas.gov.so
ShinyHuntersSOSomaliaRetailNot stated
DexCom, Inc.
dexcom.com
ShinyHuntersUSUnited StatesHealthcareNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
Merit Financial Group
meritfinancialadvisors.com
StormUSUnited StatesFinancial ServicesNot stated
Finzly Corp
finzly.com
N0nUSUnited StatesFinancial ServicesNot stated
********rta.ch
rta.ch
CloakCHSwitzerlandFinancial ServicesNot stated
Via Credit Union
viacu.org
QilinUSUnited StatesFinancial ServicesNot stated
coopecaja.fi.cr
coopecaja.fi.cr
INC RansomCRCosta RicaFinancial ServicesNot stated
Telcoe Federal Credit Union
telcoe.com
QilinUSUnited StatesFinancial ServicesNot 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.