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Listed on a ransomware leak site

Cozen O'Connor

cozen.com

Cozen O'Connor was listed on the Leakeddata and Silent Ransom Group leak site on Sep 22, 2026. Brandefense has recorded 2 separate claims against it. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
Leakeddata, Silent Ransom Group
First listed
Sep 22, 2026
Claims recorded
2

2 Leak-Site Claims.

LeakeddataConfirmed claim
Posted on the leak site
Sep 22, 2026
Collected by Brandefense
Sep 22, 2026
Data claimed
Not stated
Silent Ransom GroupConfirmed claim
Posted on the leak site
Sep 22, 2026
Collected by Brandefense
Sep 22, 2026
Data claimed
Not stated
Leak-site post text, written by the group
Cozen O'Connor is an American full-service law firm headquartered in Philadelphia, Pennsylvania. Founded in 1970, it operates in the legal services industry, providing counsel across practice areas including litigation, corporate law, insurance, real estate, labor and employment, cybersecurity, and government relations. The firm serves clients across the United States and internationally, with offices throughout the U.S. and abroad.

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
Latham & Watkins
lw.com
LeakeddataUSUnited StatesLegal ServicesNot stated
O'Hagan Meyer
ohaganmeyer.com
LeakeddataUSUnited StatesLegal ServicesNot stated
Baker McKenzie
bakermckenzie.com
LeakeddataUSUnited StatesLegal ServicesNot stated
Andersen Group Inc.
andersengroupinc.com
LeakeddataUSUnited StatesConsultingNot stated
Andersen Group
andersengrouprealty.com
LeakeddataUSUnited StatesConstructionNot stated
A...n
totalenergies.com
LeakeddataFRFranceEnergy and UtilitiesNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
Johnson & Pace
johnsonpace.com
QilinUSUnited StatesConsultingNot stated
Latham & Watkins
lw.com
LeakeddataUSUnited StatesLegal ServicesNot stated
Latham & Watkins
lw.com
Silent Ransom GroupUSUnited StatesLegal ServicesNot 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

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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.