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The incident appears to be linked to a wave of cyberattacks targeting third-party Salesforce applications.
CHICAGO — Hackers accessed personal information of 4.4 million Americans in a cyber incident affecting credit reporting agency TransUnion, the company revealed in regulatory filings.
The breach involved personal information stored in a third-party application, including names, Social Security numbers and dates of birth, according to notifications filed with attorneys general in Maine and Texas.
The incident began on July 28 and was discovered two days later, TransUnion told regulators. The company stressed that its core credit database and credit reports were not compromised. TransUnion said the breach did not affect its primary credit reporting systems.
The Chicago-based company is one of three major U.S. credit bureaus, along with Experian and Equifax. TransUnion has begun notifying affected customers and is offering free credit monitoring services. Customers can also check if their data was compromised by calling TransUnion’s Fraud Victim Assistance Department at 800-680-7289.
The incident appears to be linked to a wave of cyberattacks targeting third-party Salesforce applications, according to cybersecurity experts. Multiple companies have reported similar breaches involving unauthorized access to Salesforce-connected systems.
In 2017, credit reporting agency Equifax suffered a massive data breach, which exposed personal information of approximately 147 million Americans. That incident, one of the largest data breaches in U.S. history, compromised Social Security numbers, birth dates, addresses, and driver’s license numbers. Equifax eventually paid more than $700 million in settlements and fines related to the breach.
The Equifax incident led to increased regulatory scrutiny of credit reporting agencies and prompted congressional hearings on data security practices. It also resulted in new state and federal legislation aimed at strengthening consumer data protection.
Security experts recommend that individuals affected by the TransUnion breach monitor their credit reports, consider placing fraud alerts on their accounts, and watch for suspicious activity. Consumers can request free credit reports from all three major bureaus at annualcreditreport.com.
Law firm Schubert Jonckheer & Kolbe announced it is investigating the TransUnion breach, indicating potential legal action in the future.
TransUnion has not disclosed whether it plans to offer financial compensation to affected customers or what specific security measures it is implementing to prevent future breaches.




