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Listed on a ransomware leak site

Columbia University Information (Dental)

columbia.edu

Columbia University Information (Dental) was listed on the Global-secret-group leak site on Aug 14, 2026. Information as of Oct 19, 2026.

Country: United StatesIndustry: Healthcare
Updated continuously · figures as of Oct 19, 2026
Claimed by
Global-secret-group
First listed
Aug 14, 2026
Claims recorded
1

Leak-Site Claim.

Global-secret-groupConfirmed claim
Posted on the leak site
Aug 14, 2026
Collected by Brandefense
Aug 14, 2026
Data claimed
296 GB
Leak-site post text, written by the group
Country: New York, US | Website: columbia.edu | Revenue: $6.6 Billion | Industry: Colleges & Universities | Employees: [removed] | Properties: 296 GB (283,387 Files, 11,268 Folders)

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Kingwood Endoscopy
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N0nUSUnited StatesHealthcareNot stated
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Salauno
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QilinMXMexicoHealthcareNot stated
Mastelli S.r.l.
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First Dental Health
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The GentlemenUSUnited StatesHealthcareNot 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.