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Case File: Ladenburg Thalmann & Co. Inc. Data Breach

This file collects the dated facts on record for the Ladenburg Thalmann & Co. Inc. incident. The state report is dated September 24, 2026.

Timeline

  1. September 24, 2026Report filed in VermontDate the notice was lodged with the Vermont Attorney General.

Case facts

Filing state
Vermont
Date reported
September 24, 2026
Receiving office
Vermont Attorney General

Data categories in the file

  • Full Name
  • Social Security Number
  • Date of Birth
  • Financial Account Number
  • Routing Number
  • Tax Identification Information
  • Investment Portfolio Details
  • Home Address
  • Email Address

Case notes

Ladenburg Thalmann & Co. Inc., a prominent financial services and wealth management firm, filed a data security incident report with the State of Vermont Attorney General on September 24, 2026. This report acknowledges a breach of the company's network infrastructure, impacting sensitive client information maintained by the firm. The company has indicated that its investigation into the incident is ongoing and under monitoring.

The incident compromised a range of deeply sensitive personal and financial information. Data categories reported as exposed include Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Tax Identification Information, Investment Portfolio Details, Home Address, and Email Address. This type of information is routinely collected and stored by wealth management firms to facilitate services and comply with financial regulations.

The exposure of such comprehensive personal and financial details carries significant risks for affected individuals. The combination of personal identifiers like Full Name, Social Security Number, and Date of Birth provides foundational elements for identity theft. Simultaneously, the compromise of Financial Account Numbers, Routing Numbers, and Investment Portfolio Details increases the risk of unauthorized transactions, account takeover, and various forms of financial fraud. In the wealth management sector, the exposure of such comprehensive financial and personal details can lead to targeted financial exploitation.

Individuals who receive a notification regarding this incident from Ladenburg Thalmann & Co. Inc. should remain vigilant. It is advisable to thoroughly review financial account statements and credit reports for any suspicious or unauthorized activity. Placing a credit freeze or fraud alert with major credit bureaus can help prevent new accounts from being opened fraudulently. Additionally, be cautious of any unsolicited communications, particularly those requesting personal information, as these could be phishing attempts.

Questions about this case file

Where does the Ladenburg Thalmann & Co. Inc. case file come from?
Every entry is taken from the breach report Ladenburg Thalmann & Co. Inc. lodged with the Vermont Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?
Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?
It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?
Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

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Vermont data breaches

Filing source: Vermont Attorney General