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Update to Change Healthcare breach

ID: 07a21b54-ec45-5656-8972-bf50d8806d55

STIX ID: report--07a21b54-ec45-5656-8972-bf50d8806d55

Feed Name: DataBreaches.Net

Threat Score
90/100

Date Published: 2024-10-26

Date Updated: 2026-05-13

Author: Dissent

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Change Healthcare notified OCR that roughly 100 million individual breach notices were sent following a ransomware incident, which may make it the largest healthcare breach in the U.S.; reporting entities have requested clarification on whether 100 million is a final tally or an interim figure.

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