TransUnion hit by network compromise
Incident
Summary
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TransUnion confirmed a data breach that exposed personal information for more than 4 million customers after an unauthorized actor accessed a third-party application used for US customer support. The compromise occurred on July 28 and was discovered two days later. TransUnion said the exposure was limited to specific data elements and did not include credit reports or core credit information.
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Timeline
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28.08.2025 22:25 1 articles · 9mo ago
Unauthorized actor accesses TransUnion customer support application
Exploitation ObservedAn unauthorized actor accessed a third-party application supporting TransUnion's US customer support operations on July 28, exposing personal information belonging to customers in an incident affecting more than 4 million customers.
Show sources
- Hackers Steal 4M+ TransUnion Customers' Data — www.darkreading.com — 28.08.2025 22:25
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28.08.2025 22:25 2 articles · 9mo ago
TransUnion confirms data breach affecting more than 4 million customers
Initial DisclosureTransUnion confirmed that it suffered a data breach affecting the personal information of more than 4 million customers, said the exposed information was limited to specific data elements and did not include credit reports or core credit information, and offered impacted customers two years of myTrueIdentity online credit monitoring services.
Show sources
- Hackers Steal 4M+ TransUnion Customers' Data — www.darkreading.com — 28.08.2025 22:25
- Hackers Steal 4M+ TransUnion Customers' Data — www.darkreading.com — 28.08.2025 22:25