2
Published signals
currently linked to this company
Company intelligence
Transunion cybersecurity incidents and threat signals
transunion.com
This company page brings together public reporting currently associated with Transunion. It reflects signals published by Shadow Tier and should not be read as a complete incident history.
Company links
0
Last 28 days
recent published signals
0
Last 90 days
recent published signals
0
High or critical
confidence classifications
June 25, 2026
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most recent published signal
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Based on all published signals currently linked to Transunion. Affected countries come from victim data; the company country above remains a separate profile fact. Counts describe this reporting set, not overall incident prevalence.
Confirmed impacts
Company signals
All published signals involving Transunion
TransUnion (Partial) Data Breach via Salesforce Compromise
TransUnion disclosed a data breach affecting 13 million records, stemming from a compromise of a Salesforce environment. The 'Scattered LAPSUS$ Hunters' group claimed responsibility for stealing data from Salesforce customers and threatened to leak it by October 10, 2025. The compromised data includes personal identifiers and contact details.
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. The data was stolen from its Salesforce account as part of a broader supply-chain attack.
FAQ
Questions about Transunion cybersecurity reporting
What does the Transunion page include?
It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Transunion.
Does every mention of Transunion appear here?
No. A signal must contain a reliable company connection and meet the publication criteria; incidental or ambiguous mentions are excluded.
Why can the incident count change?
The page follows current published reporting. Counts change as new evidence is added, classifications are reviewed, or older signals leave the reporting window.