On or around July 30, 2025, TransUnion LLC (“TransUnion”) became aware of suspicious activity on one of its third-party applications. Based on a subsequent forensic investigation, TransUnion determined that cybercriminals infiltrated this inadequately secured application and gained access to TransUnion files. The investigation further determined that, through this infiltration, cybercriminals potentially accessed and/or acquired files containing the sensitive personal information of 4,461,511 individuals.
The information exposed in the data breach includes, but is not limited to:
- Names
- Social Security numbers
- Dates of birth
As a result of the TransUnion data breach, these individuals’ personal and highly confidential information may be in the hands of cybercriminals who can place the information for sale on the dark web or use the information to perpetrate identity fraud.
Murphy Law Firm is investigating claims on behalf of all individuals whose personal and confidential information was potentially compromised in the data breach. We are evaluating legal options, including a potential class action lawsuit, to recover damages for individuals who were affected by the TransUnion data breach.