Understanding your SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum data breach notification letter
If a SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
This breach is real, not a scam. SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum officially reported it to the Delaware Attorney General on June 27, 2025.
Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278
Why you received this letter
SouthEast Series of Lockton Companies, LLC. (Lockton) is a prominent global insurance brokerage and risk management firm that handles sensitive client information. As an insurance-related entity, Lockton typically collects and stores extensive personal and financial data, including Social Security numbers, policy details, and sensitive account information required for underwriting and claims processing. This data breach was officially reported to the Delaware Attorney General in 2025, confirming that unauthorized parties may have accessed sensitive records. If you received a data breach notification letter from Lockton, it indicates that your personal information was likely contained within the impacted systems. This page provides an overview of the incident to help you understand the nature of the exposure and the steps you should take to protect your identity and financial security.
What to do after the letter
Confirm the notice is genuine
A legitimate SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum notice references the specific incident reported to the Delaware Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Find out whether you have a claim
Whether the SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum breach gives you a legal claim depends on the facts. A free, no-obligation case review will tell you where you stand — there is no cost and no commitment to find out.
This page summarizes a data breach reported to the Delaware Attorney General for informational purposes and is attorney advertising. It does not create an attorney-client relationship. DataBreachClassActions.com does not provide legal advice through this page.
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