high severity April 12, 2025 · 3 min read Unverified claim — what this is

DaVita Listed by Interlock Ransomware Group

If you are a customer of DaVita, here’s what is being claimed, and what it would mean for you.

DaVita Inc. provides kidney dialysis services for patients suffering from chronic kidney failure in the United States. The company operates kidney dialysis centers and provides related lab services in outpatient dialysis centers. It also offers outpatient, hospital inpatient, and home-based hemodialysis services; operates clinical laboratories that provide routine laboratory tests for dialysis and other physician-prescribed laboratory tests for ESRD patients; and management and administrative services to outpatient dialysis centers. In addition, the company offers integrated care and disease m
— from Interlock’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

DaVita Listed by Interlock Ransomware Group

On April 12, 2025, dialysis provider DaVita Inc. appeared on the leak site of the interlock ransomware group. The listing indicates that internal files were exfiltrated during a ransomware attack on the company, which serves hundreds of thousands of patients with chronic kidney disease across the United States.

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What Public Reporting Shows

Public reporting indicates that DaVita operates more than 2,500 outpatient dialysis centers, provides inpatient and home-based hemodialysis, runs clinical laboratories, and supplies management services to other dialysis facilities. The interlock group posted evidence of successful data exfiltration on its dark-web leak site, though the exact number of affected individuals remains unknown at this time. Available reporting describes the exposed material as internal files; specific data types such as patient names, medical records, Social Security numbers, or payment information have not been publicly detailed. No ransom demand deadline has been confirmed in open sources.

Why This Matters for You and Your Family

If you or a family member receive dialysis, lab testing, or related care through DaVita, your information may be among the records at risk. Healthcare organizations hold some of the most sensitive details about you: diagnoses, treatment histories, insurance information, addresses, and phone numbers. When this data reaches criminals, it can be sold, combined with other leaks, or used to file fraudulent tax returns, open accounts in your name, or pressure you with threats of exposure. For families managing chronic conditions, the added stress of potential identity theft or medical fraud can feel overwhelming.

The Doxxing and Identity-Chain Implications

A single healthcare breach rarely stays isolated. Attackers frequently link an email address from one leak to usernames on social media, gaming platforms, or shopping sites. Once those connections are mapped, criminals can impersonate you, target your children’s accounts, or launch convincing spear-phishing campaigns. Credential leaks like this one often cascade into account takeovers on unrelated services where the same password was reused. Children’s gaming accounts are especially vulnerable because kids frequently use family email addresses or phone numbers that appear in adult medical records.

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What the free scan actually returns

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Found on people-search siteswe remove these

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

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Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Report details & sourcing

Attributed to Interlock · 132 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed April 12, 2025

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Threat-actor tracker

Interlock — 132 incidents tracked

Every breach we've attributed to Interlock, in one running log. See who else they've hit →

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