How do I know if I am affected by the LHC Group data breach?

LHC Group is mailing notification letters directly to affected individuals. If you have received care or services from LHC Group (also operating as UnitedHealth Group / Optum (parent since Feb 2023)) in the period leading up to February 2026 and you have not received a letter, contact the entity directly. 8,644 individuals were confirmed affected in the HHS OCR filing.

What data was exposed in the LHC Group breach?

According to the notification letter and supporting filings, the compromised data included: Full name, Home address, Date of birth, Demographic information, Clinical summaries, Diagnosis codes, Health insurance details, Provider information.

Was LHC Group attacked by a ransomware group?

Yes — the Kazu Lone-actor data-theft / extortion; intrusion at Doctor Alliance vendor claimed responsibility for the attack on LHC Group. The stolen data was posted publicly on a dark-web leak site. Ransom demand: $200,000.

What is HealthConsent and how does it help with the LHC Group breach?

HealthConsent is an independent health-data privacy service. We help affected individuals stop the ongoing flow of their health information by filing HIPAA restriction requests, FTC Health Breach Notification Rule deletion requests, and state-law deletion requests across providers, insurers, Health Information Exchanges, prescription networks, and data brokers. Credit monitoring offered by LHC Group addresses identity-theft risk; HealthConsent addresses the longer-tail problem of your exposed health data continuing to be sold and shared by other entities downstream.

Active breach tracker Lafayette, LA HQ Disclosed February 27, 2026 Part of Doctor Alliance cluster

LHC Group Data Breach 2026 (Doctor Alliance Vendor): 8,644 Home-Health Patients Exposed. UnitedHealth/Optum Subsidiary. What To Do

Q: Should I file a lawsuit over the LHC Group data breach?

4 plaintiffs' firms have publicly announced investigations or filed complaints related to the LHC Group breach: Srourian Law (publicly investigating), Barnow & Associates (publicly investigating), Gibbs Law Group (publicly investigating), Potter Handy (publicly investigating). We are not a law firm and cannot give legal advice; consult your own attorney to evaluate your options.

LHC Group, a major US home health and hospice provider and UnitedHealth/Optum subsidiary since 2023, disclosed in February 2026 that its third-party vendor Doctor Alliance suffered a November 2025 network intrusion. 8,644 LHC Group patients exposed. Same root cause as BAYADA and Amedisys vendor breaches. Here is what to do.

You have options. Scroll for the exact action steps, what your provider’s response covers, and what your health data needs beyond credit monitoring.

By HealthConsent Editorial Last updated May 15, 2026 Sources & methodology

Timeline

Oct 31, 2025

Unauthorized actor begins accessing Doctor Alliance web portal

Nov 12, 2025

Doctor Alliance discovers the incident

Jan 7, 2026

Doctor Alliance notifies LHC Group

Jan 7, 2026

Breach detected

Feb 27, 2026

LHC Group posts substitute website notice; HHS OCR filing

Oct 31, 2025

Unauthorized actor begins accessing Doctor Alliance web portal

Nov 12, 2025

Doctor Alliance discovers the incident

Jan 7, 2026

Doctor Alliance notifies LHC Group

Jan 7, 2026

Breach detected

Feb 27, 2026

LHC Group posts substitute website notice; HHS OCR filing

Data exposed

High-risk identity

Enables financial + identity theft

Date of birth

Health records

Don't expire and can't be reissued

Clinical summaries Diagnosis codes

Contact & insurance

Phishing + targeted scams

Full name Home address Demographic information Health insurance details Provider information

Class actions filed by

These firms have publicly announced investigations. You may be eligible to join. We are not a law firm and cannot give legal advice.

Srourian Law (publicly investigating) Barnow & Associates (publicly investigating) Gibbs Law Group (publicly investigating) Potter Handy (publicly investigating)

If you received a letter

Your action plan, in five steps.

You have more rights than the notification letter explains. Each step below is a concrete thing you can do today. Full detail and timing in the sections that follow.

Accept credit monitoring

It’s the floor of the response. Take it.

Freeze your credit

Free at Equifax, Experian, TransUnion.

File IRS Form 14039

Prevent fraudulent tax return under your SSN.

Review your EOBs

Insurance statements catch medical identity theft early.

Stop the ongoing flow

Credit monitoring doesn’t cover your health records. HealthConsent does.

Jump to step 5: protect my health data

What happened

LHC Group is a major US home health, hospice, and home- and community-based services provider operating across 37 states + DC. LHC Group became a wholly-owned UnitedHealth Group / Optum subsidiary in February 2023 following a $5.4B acquisition.

This breach did not originate at LHC Group’s own systems. It originated at Doctor Alliance, LLC, a Dallas-based third-party vendor that facilitates physician signatures on Home Health Certifications and Plans of Care. BAYADA Home Health Care and Amedisys (also an Optum subsidiary) are also affected by the same Doctor Alliance root incident.

Between October 31 and November 17, 2025, an unauthorized actor accessed Doctor Alliance’s web portal. The ransomware / extortion actor “Kazu” posted on an underground forum on November 7, claiming 1.24M files / 353 GB stolen and demanding $200,000 ransom. Doctor Alliance discovered the incident on November 12, 2025 and notified LHC Group on January 7, 2026. LHC Group posted a substitute website notice on February 27, 2026 confirming 8,644 affected LHC Group patients.

This is the third major Optum-portfolio PHI exposure in ~24 months: Change Healthcare 2024 (100M+), Episource 2025 (5.4M), now LHC Group via Doctor Alliance 2026.

What was stolen

Full name, home address, date of birth
Demographic information
Clinical summaries
Diagnosis codes
Health insurance details
Provider information

What LHC Group is offering

LHC Group’s substitute website notice was posted on February 27, 2026. Public reporting indicates the response includes monitoring guidance (EOB review, credit report pulls) but does not confirm a complimentary credit-monitoring enrollment program. Read your specific letter carefully for enrollment details.

LHC Group inquiry line: 1-866-542-4768
Corporate line: 337-233-1307 (Monday to Friday, 8:00 a.m. to 4:30 p.m. Central)
LHC explicitly disclaims that the incident originated in its own systems

Class actions

A federal class action against Doctor Alliance has been filed in the Northern District of Texas. Multiple plaintiffs’ firms are publicly investigating LHC Group and Doctor Alliance directly (Srourian Law, Barnow & Associates, Gibbs Law Group, Potter Handy, MyDataBreachAttorney).

What to do

Watch your insurance Explanation of Benefits statements for unfamiliar claims.
Pull free credit reports at annualcreditreport.com as a baseline precaution.
Place free credit freezes at Equifax, Experian, TransUnion.
If you receive an enrollment offer, take it.
If you are a family member or guardian of an LHC Group home-health patient (elderly, terminally ill, medically vulnerable), monitor their statements on their behalf.
Stop the ongoing flow of your home-health data. HealthConsent files HIPAA restriction requests across home-health, hospice, and prescription networks.

Continue reading

Stop your data from spreading further

Credit monitoring covers your wallet. HealthConsent covers your health records.

Your stolen diagnoses, test results, and medical record numbers don’t expire when the free credit-monitoring window ends. HealthConsent automates HIPAA restriction requests and opt-outs across providers, insurers, HIEs, and prescription networks so the data taken in this breach can’t keep being shared and sold by other entities downstream.

Protect my health data

Cancel anytime · Family plan covers spouses + dependents

Sources & further reading

Official HHS OCR Breach Portal: ocrportal.hhs.gov

About this page

This page is compiled from public regulatory filings, the breached entity’s own disclosures, and reporting from established healthcare-privacy outlets. Some sections are assembled with the help of automated research and may contain errors, summaries that lag the underlying source, or details that have since been revised. Treat it as a starting point, not legal advice or an authoritative record. If you spot something inaccurate, the linked sources above are the canonical record. For questions about your individual situation, contact the breached entity directly or consult a licensed attorney.