Data Breach Notifications

Entity Information

  • Type of Organization: Other Commercial
  • Entity Name: TransUnion LLC
  • Street Address: 555 W. Adams St.
  • City: Chicago
  • State, or Country if outside the US: IL
  • Zip Code: 60661

Submitted By

  • Name: Sanjana Palla
  • Title: Senior Privacy Counsel
  • Firm name (if different than entity):
  • Telephone Number: (832) 474-7388
  • Email Address: USPrivacy@transunion.com
  • Relationship to entity whose information was compromised: Privacy in-house counsel

Breach Information

  • Total number of persons affected (including residents): 4,461,511
  • Total number of Maine residents affected: 16,828
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified:
  • Date(s) Breach Occured: July 28, 2025
  • Date Breach Discovered: July 30, 2025
  • Description of the Breach:
    • Other
  • Information Acquired - Name or other personal identifier in combination with:

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: August 26, 2025
  • Copy of notice to affected Maine residents: U.S._Adult_Consumer_Letter.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: TransUnion is providing consumers with access to myTrueIdentity Online (TransUnion) Credit Monitoring services at no charge for two years from the date of enrollment.