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Listed on a ransomware leak site

CMS Legal Services EEIG

cms.law

CMS Legal Services EEIG was listed on the Crypto24 and LockBit 3.0 leak site on Dec 1, 2023. Brandefense has recorded 2 separate claims against it. Information as of Oct 19, 2026.

Country: GermanyIndustry: Consulting
Updated continuously · figures as of Oct 19, 2026
Claimed by
Crypto24, LockBit 3.0
First listed
Dec 1, 2023
Claims recorded
2

2 Leak-Site Claims.

Crypto24Confirmed claim
Posted on the leak site
Date not shown
Collected by Brandefense
Aug 16, 2025
Data claimed
Not stated
Leak-site post text, written by the group
We are in possession of highly confidential data belonging to CMS, one of the largest international law firms, including government and national infrastructure project files, sensitive contracts with multinational corporations, tax authority system access records, internal financial and legal documents, as well as payroll and personnel information. The complete dataset and its full file list will be publicly released in its entirety.
LockBit 3.0Confirmed claim
Posted on the leak site
Dec 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
Qatar Biomedical Research Institute (QBRI)
hbku.edu.qa
Crypto24QAQatarConsultingNot stated
Katcon Global
katcon.com
Crypto24MXMexicoTransportation and LogisticsNot stated
Industrias Guerra, S.A.
igsa.es
Crypto24ESSpainEducation and ResearchNot stated
ActionPower
actionpowertest.com
Crypto24CNChinaTechnologyNot stated
Estudio O'Farrell
estudio-ofarrell.com
Crypto24ARArgentinaLegal ServicesNot stated
Invaccs software technologies pvt ltd
invaccs.com
Crypto24INIndiaTechnologyNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
Johnson & Pace
johnsonpace.com
QilinUSUnited StatesConsultingNot stated
SQA Services Inc
sqaservices.com
N0nUSUnited StatesConsultingNot stated
Caretaker Landscape and Tree Management
caretakerlandscape.com
PearUSUnited StatesConsulting544 GB
Globeia Inc.
globeia.com
The-seven-deadly-sinsUSUnited StatesConsultingNot stated
fairfeelegalservices.com
fairfeelegalservices.com
INC RansomUSUnited StatesConsultingNot stated
grupoabg.com
grupoabg.com
LockBit 5.0MXMexicoConsultingNot 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.