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MonitoringCalifornia AG filing · September 2, 2026

Knowledge Research Center Reports Data Breach to California AG

Knowledge Research Center officially reported a data security incident to the California Attorney General, disclosing the exposure of sensitive personal information. The incident, dated July 8, 2026, involves data types that could lead to identity theft and targeted fraud. Individuals who receive a notification should review their accounts and personal records.

State
California
Breach date
July 8, 2026
Reported
September 2, 2026

What may have been exposed

  • Full Name
  • Date of Birth
  • Social Security Number
  • Mailing Address
  • Email Address
  • Institutional Affiliation Records
  • Financial and Compensation Details
  • Account Credentials

Knowledge Research Center operates by compiling extensive information from research subjects, corporate partners, and institutional participants. Its mission involves aggregating, processing, and analyzing complex datasets, which leads to the collection and retention of significant amounts of sensitive personally identifiable information (PII). This includes detailed demographic profiles, proprietary survey responses, institutional affiliation records, and financial and credentialing data.

In 2026, Knowledge Research Center formally reported a security incident to the California Attorney General. The breach date is listed as July 8, 2026, with the official filing occurring on September 2, 2026. While specific details of the breach type were unspecified in public records, data-intensive research institutions often experience compromises through sophisticated external intrusions, exploitation of system vulnerabilities, or third-party vendor issues.

The data types exposed in this incident include Full Name, Date of Birth, Social Security Number, Mailing Address, Email Address, Institutional Affiliation Records, Financial and Compensation Details, and Account Credentials. The exposure of such comprehensive personal and financial information carries significant risks for affected individuals. This type of data can be used to facilitate identity theft, open fraudulent accounts, or conduct targeted phishing campaigns.

Individuals who receive a breach notification letter from Knowledge Research Center should take proactive steps to protect their information. It is advisable to closely monitor financial accounts and credit reports for any unusual activity. Placing a credit freeze or fraud alert with major credit bureaus can help prevent unauthorized access to credit. Additionally, be cautious of unsolicited communications, especially those requesting personal information, as they could be phishing attempts.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Secure your online accounts

    Change the password on any account that reused an exposed password and turn on two-factor authentication wherever it's offered.

  • 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 Knowledge Research Center data breach

How many people were affected by the Knowledge Research Center 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, Date of Birth, Social Security Number, Mailing Address, Email Address, Institutional Affiliation Records, Financial and Compensation Details, Account Credentials. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Where can I see the official Knowledge Research Center breach notice?
Knowledge Research Center's report is published by the California Attorney General: https://oag.ca.gov/privacy/databreach/reporting Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Knowledge Research Center 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 Knowledge Research Center data breach letter legit or a scam?
A notice from Knowledge Research Center in the mail matches the breach Knowledge Research Center reported to the California Attorney General on September 2, 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 Knowledge Research Center through a phone number or website you find yourself.
Did Knowledge Research Center offer free credit monitoring?
Look for an enrollment code in your Knowledge Research Center notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Enrolling does not give up your right to bring a claim.
Can I sue Knowledge Research Center over the data breach?
It depends on what was exposed, the law in California 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 Knowledge Research Center 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 Knowledge Research Center. 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 Knowledge Research Center data breach settlement or claim be worth?
There is no set amount, and no Knowledge Research Center 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, Date of Birth, Social Security Number as involved. Keep receipts and records; they're what damages claims are built on.
Do I need a Knowledge Research Center 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: California Attorney General filing

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Knowledge Research Center Data Breach 2026: Filing Record