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DaVita hit by ransomware attack linked to Interlock

Incident
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Last updated
Happening score
H score 29
1 unique sources, 1 articles

Summary

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DaVita confirmed a ransomware breach that disrupted operations and exposed personal and health information for nearly 2.7 million people. Attackers entered the network on March 24 and were detected on April 12 after partially encrypting systems. The stolen data came from the dialysis labs database and included names, addresses, birth dates, Social Security numbers, insurance details, and health records. A group calling itself Interlock later claimed responsibility and said it leaked the data.

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Timeline

  2. 22.08.2025 12:38 1 articles · 9mo ago

    DaVita detects partial network encryption

    Detection Ioc Update

    DaVita detected the intrusion on April 12, 2025, after attackers partially encrypted its network over the weekend, and the company evicted the intruders as operations were disrupted.

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  3. 22.08.2025 12:38 1 articles · 9mo ago

    DaVita validates leaked dialysis files

    Victim Impact Update

    On June 18, 2025, DaVita obtained leaked files and confirmed their legitimacy after finding that some had been stolen from its dialysis labs, reinforcing that patient and insurance records had been exposed.

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  4. 22.08.2025 12:38 1 articles · 9mo ago

    DaVita discloses OCR breach count

    Initial Disclosure

    On August 22, 2025, DaVita disclosed that the Department of Health's Office for Civil Rights (OCR) breach portal listed 2,689,826 people whose data was stolen, and the company said it was notifying current and former patients and providing complimentary credit monitoring.

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