Illinois Data Breaches — Page 2

Envision Unlimited, a Chicago-based nonprofit, had an unconfirmed data breach reported in July 2026 by the Money Message ransomware group. The nonprofit has not yet confirmed the incident or any data compromise.

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Nissan North America experienced a data breach in June 2026 involving unauthorized access to its Oracle PeopleSoft software, potentially exposing employee information. The full scope of the breach and the exact number of affected individuals are still under investigation.

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Optimum First Mortgage experienced a reported data breach in June 2026, with a ransomware group claiming responsibility. The full extent of data exposure and affected individuals remains unconfirmed by the company.

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Southern Illinois Ob-Gyn Associates reported a data breach in May 2026, which was a hacking/IT incident affecting 38,700 individuals.

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TorHoerman Law, LLC experienced a data breach, though specific details about the incident remain unclear as of 2026. A class action lawsuit has been filed against the firm.

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Deaconess Health System experienced a vendor data breach in January 2026, where sensitive patient data was exposed. A separate ransomware attack by the worldleaks group also targeted Deaconess Health System in April 2026.

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Hightower Holdings, LLC experienced a data breach in January 2026, leading to the exposure of personal information for 131,483 individuals.

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Stevent Bail Bonds experienced a data breach in late 2025, which was publicly disclosed in early 2026, impacting over a million individuals.

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Eyemart Express experienced a ransomware data breach in March 2026, impacting individuals across 42 states.

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Tenable, a cybersecurity company, confirmed a data breach in March 2026 as part of a widespread supply-chain attack involving Salesloft.

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Insight Hospital and Medical Center Chicago experienced a data breach between August and September 2025, involving unauthorized access to patient data, which was publicly reported around February 2026.

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