Breach taxonomy
Summary
On April 12, 2025, DaVita Inc. became aware of a ransomware incident that encrypted certain elements of its network. The company activated response protocols, isolated impacted systems, engaged third-party cybersecurity professionals, and notified law enforcement. DaVita implemented contingency plans and continued to provide patient care, but some operations were impacted with interim measures deployed. The full scope, duration, and financial impact were unknown at time of filing. Filed under Item 8.01; materiality not yet determined as of filing date.
Tagging rationale
ThreatUnknown
Filing does not attribute the incident to a specific actor type -> UNKNOWN.
MethodsRansomware
Filing explicitly states 'DaVita Inc. became aware of a ransomware incident that has encrypted certain elements of our network' -> RANSOMWARE.
AssetsRevenue ProcessPersonal Data
Ransomware encrypted network elements at a dialysis service provider, impacting patient care operations (revenue process); as a healthcare company holding patient data, PERSONAL-DATA is also at risk -> REVENUE-PROCESS and PERSONAL-DATA.
EffectsBiz InterruptionCyber Extortion
Filing states 'the incident is impacting some of our operations' requiring interim measures and contingency plans (BIZ-INTERRUPTION); ransomware with encryption implies extortion demand (CYBER-EXTORTION).
Business continuityPartial
Filing states 'we have implemented our contingency plans, and we continue to provide patient care' but also that 'the incident is impacting some of our operations' with interim measures not fully restoring all functions -> Partial.
Impact
Ransomware at one of the largest U.S. dialysis providers with network encryption disrupting patient care operations across hundreds of clinics nationwide; scope and duration unknown at filing -> score 4.
InsuranceNot disclosed
Filing makes no mention of insurance -> null.
Read the original SEC filing excerpt
Item 8.01. Other Events. On April 12, 2025, DaVita Inc. (the "Company" or "we") became aware of a ransomware incident that has encrypted certain elements of our network. Upon discovery, we activated our response protocols and implemented containment measures, including proactively isolating impacted systems. We are actively working to assess and remediate the incident with the assistance of third-party cybersecurity professionals and have notified law enforcement of the matter. We have implemented our contingency plans, and we continue to provide patient care. However, the incident is impacting some of our operations, and while we have implemented interim measures to allow for the restoration of certain functions, we cannot estimate the duration or extent of the disruption at this time. Given the recency of the incident, our investigation and response are ongoing, and the full scope, nature, and potential ultimate impact on the Company are not yet known.