Data Breach Notifications

Entity Information

  • Type of Organization: Education
  • Entity Name: Columbia University
  • Street Address: 412 Low Memorial Library
  • City: New York
  • State, or Country if outside the US: NY
  • Zip Code: 10027

Submitted By

  • Name: H Jacqueline Brehmer
  • Title: Associate
  • Firm name (if different than entity): Debevoise & Plimpton LLP
  • Telephone Number: (415) 738-5703
  • Email Address: hjbrehmer@debevoise.com
  • Relationship to entity whose information was compromised: Outside Counsel

Breach Information

  • Total number of persons affected (including residents): 868969
  • Total number of Maine residents affected: 2026
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified:
  • Date(s) Breach Occured: May 16, 2025 to 06
  • Date Breach Discovered: July 08, 2025
  • Description of the Breach:
    • External system breach (hacking)
  • Information Acquired - Name or other personal identifier in combination with:

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: August 07, 2025
  • Copy of notice to affected Maine residents: Individual_Notification_Letter_Template.pdf
  • Date of any previous (within 12 months) breach notifications:
  • Were identity theft protection services offered: Yes
  • If yes, please provide the duration, the provider of the service and a brief description of the service: Columbia will be providing affected individuals with 24 months of complimentary credit monitoring and identity theft protection services through Kroll, LLC.