Healthcare technology provider TriZetto has confirmed a significant data breach where the personal and health information of over 3.4 million individuals was compromised in 2024. The breach, which went undetected for almost a year, has raised concerns about data security in the healthcare sector.
TriZetto, a subsidiary of Cognizant, serves around 200 million people and 875,000 healthcare providers in the U.S. Its platform assists doctors and healthcare providers in processing patients’ insurance for medical services.
The stolen data includes sensitive details such as patients’ names, dates of birth, addresses, Social Security numbers, as well as healthcare-specific information like provider details, demographic data, and insurance details. The breach was identified in October 2025, with unauthorized access traced back to November 2024.
Cognizant stated that the threat to its systems has been neutralized, but the delay in detecting the breach remains unexplained. Several organizations, including OCHIN, a healthcare technology provider to hundreds of care facilities, have confirmed data compromises.
Source: TechCrunch