TransUnion Report: U.S. Data Breach Severity Reaches New High in 2024

TRU
October 02, 2025

TransUnion's H1 2025 Update to the State of Omnichannel Fraud Report, released on March 27, 2025, revealed that U.S. data breach severity reached unprecedented levels in 2024, increasing by 34% from the prior year. The primary US Breach Risk Score (BRS) rose from 4.1 to 5.6 on a 1-10 scale.

Despite this increase in severity, the volume of primary data breaches dipped to 2,577 from 2,842 in 2023, and third-party data breaches fell significantly to 515 from 2,731. However, the breaches targeted more high-quality credentials, enabling cybercriminals to power automated, identity-based attacks.

Steve Yin, global head of fraud at TransUnion, stated that breach severity is a leading indicator of future fraud, meaning organizations must be even more diligent against oncoming identity fraud attacks. The report also noted that 29% of consumers surveyed lost money due to online fraud in the last year, with the median loss being $1,747.

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