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.

Source: Indiana Attorney General filing

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