Meridian Health Plan of Illinois experienced a data breach that was publicly reported on July 14, 2026, and discovered on April 28, 2026. The incident involved unauthorized access to the Meridian provider portal, affecting 21,027 individuals in the United States, primarily in Illinois. Meridian Health Plan of Illinois confirmed it secured the environment, disabled compromised accounts, and notified law enforcement.
The breach exposed various data types, including names, dates of birth, addresses, government IDs, Social Security Numbers, member ID numbers, health plan names, and limited eligibility, claims, and provider details. Both medical and financial information were also involved. Meridian stated that there is no evidence of misuse of the information at this time. The U.S. Department of Health and Human Services (HHS) Office for Civil Rights was notified on June 19, 2026, and a provider portal notice was posted on June 17, 2026.
While a lawsuit page exists for Meridian Health Plan of Illinois, the status of any formal lawsuit filing remains unconfirmed. No information regarding an MDL or the company's revenue or public trading status is available. The full extent of individuals affected by other potential incidents is not provided, and specific Illinois Attorney General filings were not detailed in the provided information.