Columbia University

1 breach3.1M affected in allEducationcolumbia.edu

Hacker steals data of 868,969 Columbia students, applicants and staffHacking exposed names, health records, insurance details, credentials and tokens, dates of birth, Social Security numbers, addresses, phone numbers, education records, financial details, government IDs and payment cards. Reported to the California AG.Hacking3.1M affectedEducationUSAug 7, 2025

About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

source2026-09-25

Columbia University, 2025-08-07https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Report-2025.pdf

source2026-09-25

Columbia University, 2025-08-07https://ago.vermont.gov/document/2025-08-07-columbia-university-data-breach-notice-consumers

data_types2026-09-25

Columbia University, 2025-08-07["names","health","insurance","credentials","dob","ssn","addresses","phone","education","financial","other","government-id","payment-card"]

records2026-09-25

Columbia University, 2025-08-073067242

data_types2026-09-25

Columbia University, 2025-08-07["names","health","insurance","credentials","dob","ssn","addresses","phone","education","financial","other"]

summary2026-09-25

Columbia University, 2025-08-07Columbia University told Maine's attorney general that a hacker who breached its network in May 2025, discovered after a June 24 outage, stole data on 868,969 people including names, birth dates, SSNs, contact details, academic history and

title2026-09-25

Columbia University, 2025-08-07Hacker steals data of 868,969 Columbia students, applicants and staff

domain2026-09-25

Columbia Universitycolumbia.edu

data_types2026-09-25

Columbia University, 2025-08-07["names","health","insurance","credentials"]

records_basis2026-09-25

Columbia University, 2025-08-07organization

records2026-09-25

Columbia University, 2025-08-07868969

attack2026-09-25

Columbia University, 2025-08-07hacking

discovered2026-09-25

Columbia University, 2025-08-072025-07-08

Added2026-09-25

Columbia University, 2025-08-07

Added2026-09-25

Columbia University