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MonitoringIndiana AG filing · September 22, 2026

HarbisonWalker International Reports 2026 Data Breach

HarbisonWalker International, Inc. filed a data breach notice in Indiana, reporting a cybersecurity incident from March 2026. The breach involved sensitive employee information including Full Names, Social Security Numbers, and financial details. Affected individuals should review their records and take protective measures.

State
Indiana
Breach date
March 27, 2026
Reported
September 22, 2026

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Wage and Compensation Information
  • Tax Return Information
  • Direct Deposit Account Details
  • Mailing Address
  • Employee ID Number

HarbisonWalker International, Inc., a significant industrial manufacturing and refractory solutions company, confirmed a data breach in a filing made on September 22, 2026, in Indiana. The company reported that a cybersecurity incident occurred on March 27, 2026, impacting its systems and potentially exposing sensitive personal information.

Public filings indicate that the exposed data categories include Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, and Employee ID Number. The combination of these data types, particularly Social Security Numbers and financial details, increases the risk of identity theft and various forms of financial fraud.

Organizations handling sensitive personal data are generally expected to implement and maintain robust security measures to protect this information from unauthorized access. These measures typically encompass technical, administrative, and physical safeguards designed to prevent data breaches. The occurrence of an incident such as this highlights the ongoing challenges in cybersecurity for companies across all sectors.

Individuals who receive a formal notification regarding this breach are encouraged to remain vigilant. It is advisable to regularly monitor financial account statements and credit reports for any unusual or suspicious activity. Placing a fraud alert or security freeze on credit files can help prevent new accounts from being opened in your name without authorization.

Further protective steps include updating passwords for online accounts, especially those linked to financial or personal information. Be cautious of unsolicited communications, such as emails or phone calls, that request personal details, as these could be phishing attempts. Always refer to official communications from HarbisonWalker International for specific guidance and information regarding the incident.

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.

  • 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 HarbisonWalker International, Inc data breach

How many people were affected by the HarbisonWalker International, Inc 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, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, Employee ID Number. 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 HarbisonWalker International, Inc breach notice?
HarbisonWalker International, Inc's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#harbisonwalker-international-inc-2026 Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the HarbisonWalker International, Inc 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 HarbisonWalker International, Inc data breach letter legit or a scam?
A notice from HarbisonWalker International, Inc in the mail matches the breach HarbisonWalker International, Inc reported to the Indiana Attorney General on September 22, 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 HarbisonWalker International, Inc through a phone number or website you find yourself.
Did HarbisonWalker International, Inc offer free credit monitoring?
Check your letter from HarbisonWalker International, Inc. 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. Enrolling does not give up your right to bring a claim.
Can I sue HarbisonWalker International, Inc over the data breach?
It depends on what was exposed, the law in Indiana 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 HarbisonWalker International, Inc 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 HarbisonWalker International, Inc. 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 HarbisonWalker International, Inc data breach settlement or claim be worth?
There is no set amount, and no HarbisonWalker International, Inc 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.
Do I need a HarbisonWalker International, Inc 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: Indiana Attorney General filing

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