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SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum data breach investigation

Filed
June 27, 2025
Regulator
Delaware AG
People affected
Not stated
File status
Investigation Open

What the filing confirms

  • SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum reported the incident to the Delaware Attorney General.

Still unknown

  • Which categories of personal information were taken. The filing does not list them.
  • How many people were affected. The filing does not give a number.
  • What caused the incident beyond the description in the filing.
  • How the attackers got in, and whether basic safeguards such as multi-factor sign-in were in place.

Investigation notes

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 our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether SouthEast Series of Lockton Companies, LLC. (“Lockton”) Addendum used reasonable security, how long it kept the data, and how quickly it told the people affected. Those questions decide whether a class action or individual claim is possible. Read more on how ransomware lawsuits work, or browse other incident files in Delaware.

SouthEast Series of Lockton Companies, LLC. Addendum data breach questions

Is the SouthEast Series of Lockton Companies, LLC. Addendum data breach letter legit or a scam?
A notice from SouthEast Series of Lockton Companies, LLC. Addendum in the mail matches the breach SouthEast Series of Lockton Companies, LLC. Addendum reported to the Delaware Attorney General on June 27, 2025. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact SouthEast Series of Lockton Companies, LLC. Addendum through a phone number or website you find yourself.
Did SouthEast Series of Lockton Companies, LLC. Addendum offer free credit monitoring?
Any free monitoring SouthEast Series of Lockton Companies, LLC. Addendum is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Enrolling does not give up your right to bring a claim.
Is there a SouthEast Series of Lockton Companies, LLC. Addendum data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against SouthEast Series of Lockton Companies, LLC. Addendum. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
What should I do after getting the SouthEast Series of Lockton Companies, LLC. Addendum data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Do I need a SouthEast Series of Lockton Companies, LLC. Addendum data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
Can I sue SouthEast Series of Lockton Companies, LLC. Addendum over the data breach?
It depends on what was exposed, the law in Delaware and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a SouthEast Series of Lockton Companies, LLC. Addendum data breach settlement or claim be worth?
There is no set amount, and no SouthEast Series of Lockton Companies, LLC. Addendum settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. Keep receipts and records; they're what damages claims are built on.

Other open files in Delaware

Attorney advertising. An incident file reflects a public regulator filing and our review of it; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.