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MonitoringMaryland AG filing · March 3, 2025

The Longleaf Network, LLC Reports Data Breach in Maryland

The Longleaf Network, LLC, a healthcare technology provider, reported a data breach to the Maryland Attorney General in March 2025. This incident exposed sensitive personal and health information for an unknown number of individuals, including Social Security Numbers and detailed medical records. If you received a notification, understanding the implications of this exposure is an important first step.

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This breach is real, not a scam. The Longleaf Network, LLC officially reported it to the Maryland Attorney General on March 3, 2025.

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State
Maryland
Reported
March 3, 2025

What may have been exposed

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

The Longleaf Network, LLC, an entity operating within the healthcare technology and administrative support sector, formally reported a data security incident to the Maryland Attorney General's office on March 3, 2025. This organization acts as a crucial link between medical providers, insurance administrators, and patients, routinely handling significant volumes of protected health information and personally identifiable data.

The compromised data from this incident is extensive and includes highly sensitive categories. Specifically, the breach involved individuals' Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Prescription Information, and Provider and Treatment Dates. The exposure of such fundamental and immutable data types, particularly those related to medical and financial identity, carries substantial long-term risks for affected individuals.

Given the nature of the information it handles, The Longleaf Network, LLC is subject to stringent regulations, including the Health Insurance Portability and Accountability Act (HIPAA) and various Maryland consumer protection statutes. These laws mandate robust administrative, physical, and technical safeguards to protect confidential records. The occurrence of a data breach of this magnitude suggests potential deficiencies in maintaining these required security protocols.

Receiving a data breach notification letter from The Longleaf Network, LLC serves as official confirmation that your private information was impacted by this security lapse. This notification establishes your standing to seek legal remedies. If you are among those affected, it is prudent to understand your rights and the potential avenues for accountability and restitution. You do not need to wait for actual fraud to occur, as the increased risk of identity theft itself can constitute a recognized legal injury. We offer a free, no-obligation review of your case to help you navigate your options.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Check for medical identity theft

    Review the Explanation of Benefits statements from your health insurer for services or claims you never received, which can signal misuse of your medical identity.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

The Longleaf Network, LLC data breach notice and letter questions

Is the The Longleaf Network, LLC data breach letter legit or a scam?
A notice from The Longleaf Network, LLC in the mail matches the breach The Longleaf Network, LLC reported to the Maryland Attorney General on March 3, 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 The Longleaf Network, LLC through a phone number or website you find yourself.
Where can I see the official The Longleaf Network, LLC breach notice?
The Longleaf Network, LLC's report is published by the Maryland Attorney General: https://oag.maryland.gov/resources-info/Pages/security-breach-notices.aspx#ITU-376474 Compare it with the letter you received to confirm the dates and details match.
How many people were affected by the The Longleaf Network, LLC 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, Prescription Information, 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 The Longleaf Network, LLC offer free credit monitoring?
Check your letter from The Longleaf Network, LLC. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Signing up doesn't waive any legal rights you may have.
What should I do after getting the The Longleaf Network, LLC 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.
Is there a The Longleaf Network, LLC 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 The Longleaf Network, LLC. 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.
Do I need a The Longleaf Network, LLC data breach lawyer or attorney?
Talking to a data breach attorney costs nothing here. A lawyer can read your notice, explain your rights under your state's law and tell you whether a claim makes sense.
How much could a The Longleaf Network, LLC data breach settlement or claim be worth?
There is no set amount, and no The Longleaf Network, LLC 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.
Can I sue The Longleaf Network, LLC over the data breach?
It depends on what was exposed, the law in Maryland 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.

Source: Maryland Attorney General filing

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