DaVita (DVA) Confirms Ransomware Attack Impacted 2.7M People

DaVita Inc. (NYSE:DVA) is one of the best long-term stocks to invest in according to Warren Buffett. On August 21, the company confirmed that a ransomware attack led to a data breach impacting millions of individuals. The company filed a report with the US Department of Health and Human Services (HHS) Office for Civil Rights (OCR), which shows that the breach affected 2,689,826 people.

The attack began on March 24, 2025, and was discovered and partially mitigated by April 12 when DaVita removed the attackers from its systems. The ransomware group Interlock claimed responsibility and has leaked some of the stolen data.

DaVita stated that the attack caused a temporary disruption to its operations, primarily affecting its laboratories. However, it maintained uninterrupted delivery of critical dialysis services across its network of over 3,100 outpatient clinics and home treatment programs worldwide. The company incurred about $13.5 million in expenses during the second quarter of 2025 to address the incident. Around $1 million was attributed to increased patient care costs and $12.5 million to general and administrative expenses for system restoration and third-party professional assistance.

DaVita Inc. (NYSE:DVA) is a leading provider of kidney care services. It operates a network of outpatient dialysis centers across the United States and in select international markets. The company also provides integrated care programs, laboratory services, and clinical research support.

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Disclosure: None. This article is originally published at Insider Monkey.