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Got a notice from Ciox Health, d/b/a Datavant Group? Here’s what to do.

Ciox Health, d/b/a Datavant Group told the Nebraska Attorney General that people’s information was exposed. If you got a letter, work through the steps below.

Your checklist

  1. 1

    Keep the letter

    Save the notice from Ciox Health, d/b/a Datavant Group and its envelope. The date you were told can matter for legal deadlines.

  2. 2

    Freeze your credit

    The filing does not list what was taken, so play it safe. A free freeze at Equifax, Experian and TransUnion stops new accounts being opened in your name.

  3. 3

    Change reused passwords

    Change any password you used with this company or reused elsewhere, and turn on two-factor sign-in.

  4. 4

    Get a free claim review

    Our legal team checks whether you can be paid for this breach. No fee unless you recover.

Step 4: free claim review

Tell us you got the Ciox Health, d/b/a Datavant Group notice. An attorney, not a call center, reads it and tells you plainly whether you have a claim.

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  • Reply within 24 hours

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About the Ciox Health, d/b/a Datavant Group breach

Reported to
Nebraska Attorney General
Date filed
February 11, 2025
People notified
Not stated
Cause in filing
Not stated

Ciox Health, operating under the Datavant Group umbrella, occupies a critical and expansive nexus within the modern healthcare ecosystem. As a leading health data company, Datavant facilitates the secure exchange, linkage, and management of vast quantities of protected health information (PHI) and personally identifiable information (PII) on behalf of hundreds of hospitals, health systems, insurance providers, and life sciences organizations. The company's core operations involve processing massive volumes of medical records, billing data, clinical trial information, and patient demographic files to streamline healthcare administration. Because of this central clearinghouse function, Ciox Health and Datavant hold some of the most sensitive, intimate, and valuable personal data in existence, making them prime repositories for highly confidential medical and financial dossiers. In 2025, Ciox Health, d/b/a Datavant Group, reported a significant data security incident to the Nebraska Attorney General, alerting regulators and consumers that unauthorized actors may have breached its digital infrastructure. While the exact vector of the attack remains subject to ongoing forensic investigation, security incidents affecting healthcare data aggregators typically involve sophisticated external intrusions, compromised credential vulnerabilities, or third-party vendor software flaws that bypass perimeter defenses. Given the sprawling architecture required to ingest, harmonize, and transfer medical records across disparate provider networks, any disruption or unauthorized access event can expose vulnerable access points throughout the data pipeline, leaving sensitive corporate and patient-facing databases exposed. The nature of the data entrusted to an organization like Ciox Health means that a successful security breach exposes individuals to severe, multi-faceted risks. Compromised records typically include full names, dates of birth, Social Security numbers, medical record numbers, health insurance policy details, specific diagnosis and treatment histories, and prescription information. Unlike a stolen credit card, which can be readily canceled and replaced, core medical and identity data cannot be altered. The exposure of clinical and demographic information creates immediate dangers of targeted medical identity fraud—where unauthorized parties obtain medical services or prescription drugs using another person's insurance—alongside long-term risks of sophisticated phishing scams, financial account takeover, and fraudulent tax filings. As a handler of massive quantities of protected health information and sensitive consumer data, Ciox Health, d/b/a Datavant Group, is bound by stringent federal and state regulatory frameworks. Under the Health Insurance Portability and Accountability Act (HIPAA), as well as applicable state data protection laws and the Federal Trade Commission Act, the company has an affirmative, legally enforceable obligation to implement robust administrative, physical, and technical safeguards to secure electronic PHI. When a security incident of this magnitude occurs, it often serves as strong prima facie evidence that the organization failed to maintain adequate encryption standards, robust multi-factor authentication, or timely vulnerability patching, thereby breaching its legal duty of care to the millions of individuals whose data it commercializes and manages. Receiving an official data breach notification letter from Ciox Health, d/b/a Datavant Group, is a formal legal admission that your confidential information was compromised due to corporate security shortcomings. This notification establishes the legal standing necessary to participate in a class action lawsuit aimed at holding the company accountable for its failure to protect your privacy. Under the law, affected individuals do not need to demonstrate that they have already suffered actual financial loss or medical fraud to seek legal redress; the mere exposure of your sensitive data constitutes a compensable injury. Our firm is currently investigating potential class action claims on a strict contingency fee basis, meaning there are never any out-of-pocket costs or attorney fees unless we successfully recover compensation on your behalf.

Full ransomware checklist

Ciox Health, d/b/a Datavant Group data breach questions

Is the Ciox Health, d/b/a Datavant Group data breach letter legit or a scam?
A notice from Ciox Health, d/b/a Datavant Group in the mail matches the breach Ciox Health, d/b/a Datavant Group reported to the Nebraska Attorney General on February 11, 2025. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Ciox Health, d/b/a Datavant Group through a phone number or website you find yourself.
Did Ciox Health, d/b/a Datavant Group offer free credit monitoring?
Check your letter from Ciox Health, d/b/a Datavant Group. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Signing up doesn't waive any legal rights you may have.
Is there a Ciox Health, d/b/a Datavant Group data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Ciox Health, d/b/a Datavant Group. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
What should I do after getting the Ciox Health, d/b/a Datavant Group data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Do I need a Ciox Health, d/b/a Datavant Group data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
Can I sue Ciox Health, d/b/a Datavant Group over the data breach?
It depends on what was exposed, the law in Nebraska and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a Ciox Health, d/b/a Datavant Group data breach settlement or claim be worth?
There is no set amount, and no Ciox Health, d/b/a Datavant Group settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. Keep receipts and records; they're what damages claims are built on.

Other notices sent in Nebraska

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