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Investigation OpenCA AG filing · April 17, 2026

Informa Details Data Security Event in California Filing

Informa, encompassing several U.S. entities, reported a data security incident to California regulators on April 17, 2026, concerning an event that took place on August 11, 2025. The company is currently investigating the incident to determine what personal information may have been affected.

State
CA
Breach date
August 11, 2025
Reported
April 17, 2026

Informa, including subsidiaries such as Informa Exhibitions U.S. Construction and Real Estate, Inc. and Informa TechTarget, has filed a report with California authorities regarding a data security incident. This event, dated August 11, 2025, was officially reported to state regulators on April 17, 2026.

The official filing does not specify the particular types of personal information that may have been involved in this event. Informa has stated that an investigation is underway to fully understand the scope and impact of the incident on the data.

Individuals who believe they may be affected by a data security event should take general precautions. It is advisable to regularly monitor personal accounts and statements for any unusual or unauthorized activity. Remaining vigilant can help in identifying potential misuse of your data.

Staying alert to unsolicited communications, especially those requesting personal details, is also a recommended step. Furthermore, periodically reviewing your credit reports can help in detecting any fraudulent activities that might arise from such an incident.

This information is derived from public records filed with state regulatory bodies. If you have received a direct notification from Informa, that document will contain specific details pertinent to your situation and any actions recommended by the company.

What to do if you were affected

These general steps can help limit the risk of identity theft and fraud after any data breach.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

What to know about the Informa data breach

Where can I see the official Informa breach notice?
Informa's report is published by the CA Attorney General: https://oag.ca.gov/privacy/databreach/list#informa-including-informa-exhibitions-u--2026-04-17 Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Informa 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.
Is the Informa data breach letter legit or a scam?
A notice from Informa in the mail matches the breach Informa reported to the CA Attorney General on April 17, 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 through a phone number or website you find yourself.
Did Informa offer free credit monitoring?
Check your letter from Informa. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Signing up doesn't waive any legal rights you may have.
Can I sue Informa over the data breach?
It depends on what was exposed, the law in CA 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.
Is there a Informa 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. 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.
How much could a Informa data breach settlement or claim be worth?
There is no set amount, and no Informa 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.
Do I need a Informa 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.

Source: CA Attorney General filing

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