TransUnion suffers data breach impacting over 4.4 million people
Consumer credit reporting giant TransUnion disclosed a data breach on August 28, 2025, impacting over 4.4 million people in the United States.
Key points
- Over 4.4 million people in the United States affected.
- Data stolen from TransUnion's Salesforce account.
- Exposed personal information includes names, billing addresses, phone numbers, email addresses, dates of birth, and unredacted Social Security Numbers.
Connected intelligence
Signal brief
Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.
Organization
- Published
- Aug 28, 2025
- Updated
- Jun 25, 2026
- Confidence
- Medium
- Evidence
- 3 sources
Structured assessment
Signal analysis
It helps compare this signal with other published signals without treating the labels as final determinations.
Threat source
Watch exposure paths that could affect data, operations or third-party trust.
Business impact
- Impact area
- Confidentiality
- Likely asset
- User or customer data
Mentioned entities
Quick context
Questions about this signal
What happened in this signal?
Consumer credit reporting giant TransUnion disclosed a data breach on August 28, 2025, impacting over 4.4 million people in the United States. The data was stolen from its Salesforce account as part of a broader supply-chain attack.
When was this signal reported?
Shadow Tier lists Aug 28, 2025 as the signal date.
Which organization is connected to this signal?
Transunion is the organization connected to this public signal.
Explore TransunionWhich impact area is relevant?
This signal is connected to data exposure and breach intelligence based on its reported consequences.
Explore data exposure and breach intelligenceRelated signals
Compare shared topics, actors and incident patterns before opening the full signal.
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