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Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget (“Informa”) “Supplemental” data breach investigation

Informa entities, including Informa Exhibitions U.S. Construction and Real Estate, recently reported a data security incident to the Maine Attorney General on May 8, 2026. This supplemental filing confirms that sensitive personal data, such as Social Security Numbers and Financial Account Numbers, was exposed. Individuals associated with Informa's various B2B operations may be affected.

Filed
May 8, 2026
Regulator
Maine AG
People affected
Not stated
File status
Monitoring

What the filing confirms

  • Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget (“Informa”) “Supplemental” reported the incident to the Maine Attorney General.
  • Information involved: Full Name, Social Security Number, Date of Birth, Mailing Address, Email Address, Wage and Compensation Information, Financial Account Number, Tax Return Information, Professional Credential Data.

Still unknown

  • 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.
Read the filing at the source

Investigation notes

On May 8, 2026, Informa Exhibitions U.S. Construction and Real Estate, other Informa U.S. entities, and Informa TechTarget collectively filed a supplemental data breach report with the Maine Attorney General. While the specific nature of the security incident remains undisclosed in the public filing, it has been confirmed that unauthorized access led to the exposure of highly sensitive personal information.

The exposed data categories include Full Name, Social Security Number, Date of Birth, Mailing Address, Email Address, Wage and Compensation Information, Financial Account Number, Tax Return Information, and Professional Credential Data. The compromise of such extensive and critical information creates a heightened risk for identity theft, financial fraud, and targeted malicious activities for those affected.

This incident initiates an open investigation into Informa's data security practices. Companies that collect and store sensitive personal data have a legal obligation to implement robust administrative, technical, and physical safeguards. The disclosure of this breach suggests that Informa's existing security measures may have been inadequate to protect against modern cyber threats, leading to this significant compromise.

Receiving an official data breach notification letter from Informa signifies that your private information was impacted due to this security lapse. Under current legal frameworks, individuals who receive such notices may have grounds to pursue legal action for potential damages. It is important to note that you typically do not need to prove immediate financial loss to participate in a lawsuit related to a data breach.

If you have received a data breach notification from Informa, consider taking immediate steps to protect yourself. This includes monitoring your credit reports, reviewing financial statements for unusual activity, and placing a fraud alert or security freeze on your credit. Understanding your legal rights and available options is also crucial in the wake of such an event.

What our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget (“Informa”) “Supplemental” 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 Maine.

Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” data breach questions

How many people were affected by the Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Social Security Number, Date of Birth, Mailing Address, Email Address, Wage and Compensation Information, Financial Account Number, Tax Return Information, Professional Credential Data. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Is the Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” data breach letter legit or a scam?
A notice from Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” in the mail matches the breach Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” reported to the Maine Attorney General on May 8, 2026. 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 Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” through a phone number or website you find yourself.
Did Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” offer free credit monitoring?
Check your letter from Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental”. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Signing up doesn't waive any legal rights you may have.
Is there a Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” 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 Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental”. 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 Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” 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.
Where can I see the official Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” breach notice?
Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental”'s report is published by the Maine Attorney General: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/0cf1f95e-657b-4493-9401-bc289a8e7d9c.html Compare it with the letter you received to confirm the dates and details match.
Do I need a Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” 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 Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” over the data breach?
It depends on what was exposed, the law in Maine 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 Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” data breach settlement or claim be worth?
There is no set amount, and no Informa Exhibitions U.S. Construction and Real Estate, Inc., other Informa U.S. entities, and Informa TechTarget “Supplemental” 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. The filing lists Full Name, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.

Other open files in Maine

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.