All Breaches
May 16, 2025 Verified Sensitive Record Education

Columbia University Data Breach

Columbia University is a higher-education institution based in New York. According to the current Texas Attorney General record, the May–June 2025 network breach affected 3,067,242 people nationwide.

3.1 Million
Affected People
11
Data Types
Critical
Severity
Yes
Verification

Exposed Data Types

11
Names
Physical addresses
Dates of birth
Social security numbers
Driver's license numbers
Government IDs
Financial account information
Health insurance information
Medical information
Education details
Enrollment information

Additional Information

Added DateAugust 2, 2026
Breach DateMay 16, 2025
Domaincolumbia.edu
SourceUnauthorized network access with data theft and disruption of university IT systems
Last Content UpdateAugust 2, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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Company Information

Company NameColumbia University
SectorEducation
CountryUnited States
Websitecolumbia.edu

Risk Level

Critical

The reported impact exceeds 1 million and falls within the critical severity band.

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