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iRhythm Technologies Inc. data breach

iRhythm Technologies Inc. recently reported a data security incident to the Texas Attorney General, affecting patients whose highly sensitive medical and personal information was exposed. The breach involved unauthorized access to deeply personal health data, creating significant long-term risks for those affected. Understanding the specific data compromised is the first step in protecting yourself.

Incident readout

Company
iRhythm Technologies Inc.
Reported to
Texas Attorney General
Filed
October 6, 2026
People affected
Not stated in the filing
Incident type in filing
Not stated
Our review
Monitoring
Read the official filing

Was this a ransomware attack?

The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.

Information listed in the filing

  • Full Name
  • Date of Birth
  • Social Security Number
  • Medical Record Number
  • Health Insurance ID Number
  • Diagnosis and Treatment Information
  • Cardiac Monitoring and ECG Data
  • Provider and Treatment Dates

What we know

iRhythm Technologies Inc., a company specializing in digital health and cardiac monitoring, recently disclosed a data security incident. The breach was discovered on June 3, 2026, and reported to the Texas Attorney General on October 6, 2026, confirming unauthorized access to sensitive patient information within their systems.

The compromised data types identified include Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Cardiac Monitoring and ECG Data, and Provider and Treatment Dates. This combination of personal identifiers and detailed health records creates a serious risk for affected individuals.

Criminals often target such extensive datasets for medical identity theft, which can involve filing fraudulent insurance claims, obtaining prescription drugs, or receiving medical services under a victim's name. This can lead to significant financial and medical complications, including incorrect entries in your health records and challenges with insurance coverage.

If you have received a notification letter from iRhythm Technologies Inc., it is important to carefully review it to understand exactly what information of yours was exposed. While credit monitoring is often offered, the unique risks associated with stolen medical data may require additional protective measures.

Beyond monitoring financial accounts, it is advisable to regularly review your Explanation of Benefits (EOB) statements from your health insurance provider for any services or treatments you did not receive. This can help detect early signs of medical identity theft.

Understanding the potential impact of this data breach on your privacy and security is crucial. Companies handling sensitive health information are held to stringent security standards, and a breach may indicate a failure to adequately protect patient data.

Our firm is currently investigating the iRhythm Technologies Inc. data breach and offers a free case review to help affected individuals understand their rights and potential legal options. There are no out-of-pocket costs to you unless we successfully recover compensation.

See every breach reported in Texas or read what to do after a ransomware attack.

After the iRhythm Technologies Inc. incident: what to do and your options

What should I do after getting the iRhythm Technologies Inc. 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.
How many people were affected by the iRhythm Technologies Inc. data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Cardiac Monitoring and ECG Data, Provider and Treatment Dates. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did iRhythm Technologies Inc. offer free credit monitoring?
Look for an enrollment code in your iRhythm Technologies Inc. notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Using the free service won't stop you from joining a lawsuit or settlement later.
Where can I see the official iRhythm Technologies Inc. breach notice?
iRhythm Technologies Inc.'s report is published by the Texas Attorney General: https://oag.my.site.com/datasecuritybreachreport/apex/DataSecurityReportsPage#BR-0005401 Compare it with the letter you received to confirm the dates and details match.
Can I sue iRhythm Technologies Inc. over the data breach?
It depends on what was exposed, the law in Texas 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.
Do I need a iRhythm Technologies Inc. data breach lawyer or attorney?
Whether the company's systems were encrypted by ransomware or data was simply taken, the legal question is the same: did it protect your information the way the law requires? An attorney can review your notice for free, and these cases are usually handled on contingency.
Is there a iRhythm Technologies Inc. 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 iRhythm Technologies Inc.. 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.
Is the iRhythm Technologies Inc. data breach letter legit or a scam?
A notice from iRhythm Technologies Inc. in the mail matches the breach iRhythm Technologies Inc. reported to the Texas Attorney General on October 6, 2026. 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 iRhythm Technologies Inc. through a phone number or website you find yourself.
How much could a iRhythm Technologies Inc. data breach settlement or claim be worth?
There is no set amount, and no iRhythm Technologies Inc. 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. The filing lists Full Name, Date of Birth, Social Security Number as involved. Keep receipts and records; they're what damages claims are built on.

Other breaches reported in Texas

Attorney advertising. This page reflects a public regulator filing; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.