Year-Long TriZetto Health Data Breach Leaks Sensitive Healthcare Information of 3.4 Million People

An almost year-long data breach at TriZetto Provider Solutions (TPS) has leaked the sensitive health data of 3.4 million individuals.

Cognizant-owned TriZetto provides billing systems for healthcare providers and health technology systems operators. It serves over 200 million Americans across over 800,000 health facilities.

In early October 2025, the health IT firm discovered the breach after detecting suspicious activity on its web portal.

“TPS determined that, beginning in November 2024, an unauthorized actor began accessing some records related to insurance eligibility verification transactions that healthcare providers process to assess insurance coverage for treatment services they provide to patients,” the company said.

While the compromised information varied by individual, it included full names, physical addresses, dates of birth, and Social Security Numbers. The data breach also leaked health insurance numbers, Medicare beneficiary IDs, health provider names, insurer names, and demographic, health, and insurance information.

According to a data breach notification filed with the Office of the Maine Attorney General, the data breach affected 3,433,965 people, including 1,128 Maine residents.

Read the full article on CPO magazine.

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