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Ladenburg Thalmann & Co Inc was the subject of a data breach notification filed with the IN Attorney General. The AG filing was recorded on September 24, 2026. The breach or discovery date reported in the filing is February 28, 2026.
From the AG filing description
Ladenburg Thalmann & Co Inc operates as a prominent and longstanding financial services firm, providing independent wealth management, asset management, investment banking, and brokerage services to individual and institutional clients nationwide. Because of the nature of its business, Ladenburg Thalmann routinely collects, processes, and maintains vast quantities of deeply sensitive financial and personal information. Clients entrust the firm with not only their liquid capital and investment portfolios, but also the comprehensive personal data required to open accounts, execute trades, and manage estate and retirement planning. This high-volume accumulation of wealth-related data makes financial institutions like Ladenburg Thalmann prime targets for sophisticated cybercriminal enterprises seeking to monetize stolen identities and financial records. In 2026, Ladenburg Thalmann & Co Inc formally reported a significant data security incident to the Indiana Attorney General, triggering legal and regulatory scrutiny regarding the security posture of the firm's digital infrastructure. While exact intrusion methodologies vary, incidents affecting financial institutions typically involve sophisticated cyberattacks such as unauthorized access to legacy client databases, credential stuffing attacks, or third-party vendor compromises that bypass perimeter defenses. In many instances, threat actors exploit vulnerabilities in network security or leverage phishing campaigns to infiltrate internal systems, allowing them prolonged and undetected access to sensitive repositories containing client and employee records. Data breach notifications issued by financial institutions like Ladenburg Thalmann typically reveal the exposure of critical personally identifiable information (PII) and financial identifiers, including full names, Social Security numbers, dates of birth, financial account numbers, routing numbers, and detailed investment transaction histories. The exposure of this specific data combination creates severe, cascading risks for affected individuals. Social Security numbers and dates of birth form the foundational triad for identity theft, enabling threat actors to open fraudulent lines of credit, apply for loans, or intercept tax refunds in the victim's name. Meanwhile, leaked financial account and routing numbers expose individuals to immediate direct account takeover, unauthorized wire transfers, and targeted financial fraud. Under federal and state law, financial institutions operating within the United States are subject to stringent regulatory frameworks designed to protect consumer data. Specifically, the Gramm-Leach-Bliley Act (GLBA), along with applicable state data protection statutes and FTC guidelines, imposes strict affirmative duties on financial firms to safeguard non-public personal information (NPI). These regulations mandate the implementation of robust administrative, technical, and physical safeguards, including multi-factor authentication, regular system audits, data encryption, and proactive vulnerability management. The occurrence of a data breach of this magnitude strongly suggests a failure of these legal obligations, indicating that the institution may have fallen below the requisite standard of care in maintaining adequate network security. Receiving a formal data breach notification letter from Ladenburg Thalmann & Co Inc serves as a legal admission that your private information was compromised due to inadequate security measures. Under modern data privacy litigation standards, the receipt of such a notice often establishes the requisite legal standing to initiate or join a class action lawsuit, even before fraudulent charges or active identity theft manifest. Affected individuals do not need to prove immediate financial loss to participate in legal recourse. Our class action law firm is actively investigating potential claims on behalf of impacted Indiana residents and consumers nationwide on a contingency fee basis, meaning there are never any out-of-pocket costs or attorney fees unless a financial recovery is successfully secured.
Based on the data types reported in this filing:
Your SSN is the master key to your identity. Once exposed, criminals can open new lines of credit, take out loans, or file taxes in your name.
Combined with a name and other leaked data, date of birth helps criminals pass identity verification questions at banks and government agencies.
You may have been affected by the Ladenburg Thalmann & Co Inc data breach if:
Common categories of compensation in data breach class actions
Courts recognize that the time spent monitoring accounts, placing credit freezes, and dealing with the aftermath of a breach has real economic value. This category of damages is recoverable even without direct financial loss.
Professional credit monitoring services cost $10–$40 per month. Identity theft restoration services, if needed, can cost hundreds of hours and thousands of dollars. Courts have awarded these costs as direct damages in SSN breach cases.
Direct financial losses resulting from the breach — unauthorized charges, fraudulent transfers, or fees incurred through fraud — are recoverable as compensatory damages. Banks may reverse some charges; a class action recovers the remainder and associated costs.
Data breach victims regularly report anxiety, loss of sleep, and ongoing fear of identity theft. These non-economic harms are cognizable injuries in data breach litigation, particularly in cases involving SSN or medical record exposure.
Note: an attorney general breach filing does not by itself establish a settlement fund, a payment amount, or a claim deadline. If an official settlement notice is later issued, rely on that notice for payment details and deadlines.
Applicable State Law
This breach was reported under the Indiana data breach notification law, which mandates notification and establishes your right to seek damages.
No. Under Indiana data breach notification law and federal law, the unauthorized exposure of your personal data — regardless of whether it has been actively misused — can be sufficient grounds for a claim. The breach itself is the injury.
Nothing. The Law Office of David S. Harris handles data breach cases on contingency — you pay zero upfront and owe nothing unless compensation is recovered.
Immediately place a free credit freeze at all three bureaus (Equifax, Experian, TransUnion). A freeze blocks new accounts from being opened in your name. Then file a complaint with the FTC at IdentityTheft.gov and contact our office — SSN exposure is one of the most serious breach types.
Banks may reverse fraudulent charges, but they are not obligated to compensate you for time lost, stress, or indirect damages. A class action claim against the breached company can recover those additional categories of harm.
State statutes of limitations for data breach claims typically run 2–4 years from the date of the breach or its discovery. Because this breach was recently disclosed, the window is open — but acting early preserves your options and strengthens the case.
Accepting free credit monitoring from Ladenburg Thalmann & Co Inc does not waive your right to pursue legal action unless you signed a specific release waiving claims. In most cases, victims who accepted monitoring can still file.
Not necessarily. Many data breach victims are never notified directly. If your personal information was held by Ladenburg Thalmann & Co Inc during the relevant period, you may still qualify even without receiving a letter. A free eligibility review can confirm your status.
Received a notification letter from Ladenburg Thalmann & Co Inc?
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