• July 21, 2026

In September 2015, Experian, a leading credit bureau in the United States, experienced a significant data breach affecting approximately 15 million individuals who had applied for financing through T-Mobile. The breach resulted in the unauthorized exposure of sensitive personal information, including names, addresses (both physical and email), birth dates, and various demographic details. Although some of the leaked data was confirmed by users, the source of the breach remains uncertain, leading to its classification as “unverified.”

  • Breach date: 2015-09-16
  • Persons affected: 7,196,890

Data exposed: Address, Credit Status Information, Dates Of Birth, Email, Ethnicities, Family Structure, Gender, Home Ownership Statuses, IP Address, Income Levels, Name, Phone, Purchasing Habits

Potential risks

Potential risks associated with the exposed data include identity theft, financial fraud, phishing attacks, and unauthorized access to personal accounts, which could result in further compromise of individuals’ private information.