Fluke Hack Exposes Social Security Numbers and Other Sensitive Data of 18,500 People

Fluke manufactures industrial testing and measurement equipment widely used in manufacturing, energy and maintenance. The incident underscores the supply-chain cybersecurity risks created by companies’ reliance on third-party software. The exposed data included identifying and disability-related information that could be used for fraud or identity theft.

As of July 20, 2026, Fluke had confirmed that hackers exploited a vulnerability in third-party software and stole Social Security numbers, identity information and disability-related data belonging to about 18,500 people. The Clop ransomware group claimed responsibility. Fluke offered victims 24 months of free identity-theft monitoring and credit-protection services.