Cyber Risks · Krebs on Security

Change Healthcare Breach Hits 100M Americans

Summary: Change Healthcare says it has notified approximately 100 million Americans that their personal, financial and healthcare records may have been stolen in a February 2024 ransomware attack, the largest known breach of protected health information. Intruders had stolen or purchased credentials for a Citrix portal used for remote access, and no multi-factor authentication was required for that account, per June 2024 Senate testimony.

Key Takeaway: UnitedHealth Group incurred $1.521 billion in direct breach response costs and $2.457 billion in total cyberattack impacts over the nine months ending September 30, 2024, including a $22 million ransom payment to BlackCat/ALPHV that did not stop the data from being offered for sale by RansomHub. A single remote-access account without MFA at a central payments and prescriptions processor reached 100 million people.

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Topics
Data Breaches
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