DataBreachInformation.com
MonitoringIndiana AG filing · September 18, 2026

Millstone Medical Outsourcing LLC Reports 2025 Data Breach

Millstone Medical Outsourcing LLC has reported a data breach impacting individuals whose personal information was held by the company. The incident, which occurred in late 2025, involved the exposure of sensitive data like Social Security Numbers and financial account details. Those who receive a notification are advised to review its contents and consider taking immediate steps to protect their identity and finances.

State
Indiana
Breach date
December 15, 2025
Reported
September 18, 2026

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Mailing Address
  • Wage and Compensation Information
  • Driver's License Number
  • Financial Account Details
  • Internal Employee Identification Numbers

Millstone Medical Outsourcing LLC, an Indiana-based company, filed a data breach notification with regulatory authorities on September 18, 2026. This filing confirms that the company experienced a data security incident on December 15, 2025, which led to the compromise of personal data.

The breach exposed several categories of sensitive information. The reported data types include Full Name, Social Security Number, Date of Birth, Mailing Address, Wage and Compensation Information, Driver's License Number, Financial Account Details, and Internal Employee Identification Numbers.

Such exposure means individuals could face an increased risk of identity theft, financial fraud, or other malicious activity. Unauthorized access to foundational data points like Social Security Numbers and financial details can be used to open fraudulent accounts, file false tax returns, or gain unauthorized access to existing accounts.

Individuals who receive a formal notification from Millstone Medical Outsourcing LLC should carefully read the letter for specific details about the data exposed and any protective services offered. It is generally recommended to monitor credit reports and financial statements for suspicious activity.

Consider placing a fraud alert or security freeze on your credit files through the major credit bureaus (Equifax, Experian, and TransUnion). Additionally, change passwords for online accounts, especially those that might use similar credentials as any accounts associated with the compromised information.

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.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Replace exposed ID documents

    Contact your state DMV or the issuing agency about replacing an exposed driver's license, passport, or government ID number.

  • 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.

What to know about the Millstone Medical Outsourcing LLC data breach

How many people were affected by the Millstone Medical Outsourcing 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, Social Security Number, Date of Birth, Mailing Address, Wage and Compensation Information, Driver's License Number, Financial Account Details, Internal Employee Identification Numbers. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Where can I see the official Millstone Medical Outsourcing LLC breach notice?
Millstone Medical Outsourcing LLC's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#millstone-medical-outsourcing-llc-2026 Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Millstone Medical Outsourcing 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 the Millstone Medical Outsourcing LLC data breach letter legit or a scam?
A notice from Millstone Medical Outsourcing LLC in the mail matches the breach Millstone Medical Outsourcing LLC reported to the Indiana Attorney General on September 18, 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 Millstone Medical Outsourcing LLC through a phone number or website you find yourself.
Did Millstone Medical Outsourcing LLC offer free credit monitoring?
Look for an enrollment code in your Millstone Medical Outsourcing LLC 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.
Can I sue Millstone Medical Outsourcing LLC over the data breach?
It depends on what was exposed, the law in Indiana 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.
Is there a Millstone Medical Outsourcing 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 Millstone Medical Outsourcing 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.
How much could a Millstone Medical Outsourcing LLC data breach settlement or claim be worth?
There is no set amount, and no Millstone Medical Outsourcing 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, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.
Do I need a Millstone Medical Outsourcing LLC 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.

Source: Indiana Attorney General filing

Related data breach cases