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TransUnion says hackers stole 4.4 million customers’ personal information Zack Whittaker AM PDT · August 28, 2025

In a filing with Maine’s attorney general’s office on Thursday, TransUnion attributed the July 28 breach to unauthorized access of a third-party application storing customers’ personal data for its U.S. consumer support operations.

TransUnion claimed “no

David Blumberg, a spokesperson for TransUnion, did not immediately comment when contacted

TransUnion is one of the largest

Several companies, including Google, insurance giant Allianz Life, Cisco, and HR giant Workday, reported data breaches of customer data stored in their Salesforce-hosted cloud databases. Following its breach, Google attributed the hacks to an extortion group known as ShinyHunters.

It’s not clear who is behind the breach at TransUnion, or if the hackers made any demands to the company.

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Zack Whittaker Security Editor

Zack Whittaker is the security editor at TechCrunch. He can be reached via encrypted message at zackwhittaker.1337 on Signal. You can also contact him

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