TransUnion Discloses Data Breach Impacting 4.46 Million People

On July 30, 2025, TransUnion, one of the three major U.S. consumer credit reporting agencies, was made aware of a major data breach affecting its U.S. consumer support operations.

In total, the incident impacted 4,461,511 people nationwide. State-specific disclosures report that 377,357 Texans, 95,336 in Massachusetts, 25,943 Iowa residents, 88,689 in Washington, 16,508 in New Hampshire, 377,357 in Texas and 16,828 Maine residents were among those affected.

According to the disclosure to the Texas Attorney General, the exposed information includes names, Social Security numbers and dates of birth. According to TransUnion, the breach did not compromise credit reports or core credit information as the incident was limited to certain personal data stored on the third-party system supporting consumer support functions.

TransUnion began to notify affected consumers by U.S. Mail on Aug. 26, 2025. In addition to the Texas AG disclosure, the breach has also been reported to the California, Iowa, Washington, Massachusetts, New Hampshire, Montana and Maine Attorney Generals' offices.

Trans Union's response

In response to the breach, TransUnion has enhanced its security controls and continues to monitor its systems for any suspicious activity. To support those impacted, TransUnion is offering complimentary credit monitoring and identity protection services for 24 months through its myTrueIdentity platform. These services include credit monitoring, identity protection, identity resolution support and $1 million in identity theft insurance.

Affected individuals are encouraged to enroll in the free credit monitoring service within 90 days of receiving their notification letter. Enrollment requires an internet connection and email account. Additionally, TransUnion is providing proactive fraud assistance through Cyberscout, a TransUnion company specializing in fraud remediation.

TransUnion also recommends that consumers take the following precautions:

• Obtain a free weekly credit report at www.annualcreditreport.com or by calling 877-322-8228
• Place a fraud alert on their credit file by contacting any of the three nationwide credit bureaus
• Consider placing a credit freeze with each credit bureau to prevent new credit accounts from being opened without consent

For questions or additional information, affected consumers can call the dedicated support line at 800-516-4700, Monday through Friday from 8 a.m. to 8 p.m. Eastern Time, except major holidays.