Ladenburg Thalmann & Co Inc Discloses 2026 Data Breach in Indiana

Financial services firm Ladenburg Thalmann & Co Inc reported a data security incident to Indiana authorities in September 2026. The breach, which occurred in February 2026, exposed client data including Full Names, Social Security Numbers, and financial account details. Individuals who receive a notification should take immediate steps to protect their information.

State: Indiana
Breach date: February 28, 2026
Reported: September 24, 2026

What may have been exposed

Full Name
Social Security Number
Date of Birth
Financial Account Number
Routing Number
Investment and Transaction History
Mailing Address
Tax Identification Information

Ladenburg Thalmann & Co Inc, a financial services provider, officially filed a data breach notification with the State of Indiana on September 24, 2026. This notification pertains to a security incident that reportedly took place on or around February 28, 2026. The company stated that it is currently monitoring the situation following the breach.

The types of personal and financial information reported as exposed include Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Investment and Transaction History, Mailing Address, and Tax Identification Information. This combination of data elements is highly sensitive and can be targeted for various forms of fraud.

Exposure of such detailed personal and financial data carries significant risks for affected individuals. Compromised Social Security Numbers and Dates of Birth are foundational for identity theft, potentially enabling criminals to open new lines of credit or accounts in a victim's name. Financial Account Numbers and Routing Numbers could lead to unauthorized transactions or direct financial fraud.

Individuals who receive a data breach notification from Ladenburg Thalmann & Co Inc should immediately review all financial statements and account activity for any unauthorized or suspicious transactions. It is also advisable to monitor credit reports closely by obtaining free copies from the major credit bureaus. Placing a fraud alert or security freeze on credit files can further help prevent fraudulent activity.

This information is based on public records filed with state regulatory bodies. Remaining vigilant and proactive in safeguarding personal information is crucial for those impacted by such incidents.

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.
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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