Fluke Corporation experienced a data breach due to unauthorized access to a third-party business application. The breach occurred between August 10, 2025, and October 7, 2025, with discovery by the company on September 29, 2025. This incident was confirmed by a filing with the Maine Attorney General on May 14, 2026.
The breach affected 18,517 individuals in the U.S. and involved data types including names, Social Security numbers (SSNs), dates of birth, and an indicator of whether an individual self-identified as having a disability. The company began notifying affected consumers by written letter on May 15, 2026. The full extent of data compromised and individuals affected, particularly beyond the confirmed states, remains unclear. There is no evidence of financial data exposure in the provided sources. Credit monitoring and identity theft prevention services were offered to affected individuals.
Data breach details can emerge over time, and consumer notification efforts may be staggered.