Becker's Healthcare August 5, 2025
Giles Bruce

Change Healthcare has increased the number of people estimated to be affected by a 2024 cyberattack to nearly 193 million.

The UnitedHealth Group claims processing subsidiary revealed the number, a few million more than its last estimate, in a letter to the New Hampshire Office of the Attorney General. The company was writing to say it could not find addresses for all patients impacted in the state.

“The final total number of individuals impacted by the Change Healthcare cyberattack is approximately 192.7 million,” a company spokesperson...

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