4Waukegan Steel LLC Discloses 2025 Data Security Incident

4Waukegan Steel LLC, based in Indiana, has reported a data security incident that occurred on October 21, 2025, and was officially filed on March 13, 2026. This incident involved the exposure of personal information, prompting individuals who may be affected to review official notifications and take protective measures. The company is currently monitoring the situation.

State: Indiana
Breach date: October 21, 2025
Reported: March 13, 2026

What may have been exposed

Full Name
Social Security Number
Date of Birth
Home Address
Wage and Compensation Information
Tax Return Information
Direct Deposit Account Details
Telephone Number

4Waukegan Steel LLC, operating in Indiana, has publicly reported a data security incident. This event, which impacted the company's systems, took place on October 21, 2025. The company officially filed notice regarding this incident on March 13, 2026, making the details available through public regulatory channels.

The nature of the security event led to the compromise of personal information. While the specific categories of data involved have not been detailed in public filings, individuals should understand that their information may have been part of this incident. The company has indicated that its investigation into the matter is currently in a monitoring status.

This information is derived directly from the public filings submitted by 4Waukegan Steel LLC to regulators. Such disclosures are a critical part of maintaining transparency and providing affected individuals with the necessary facts to safeguard their data.

Individuals who receive notification from 4Waukegan Steel LLC regarding this incident should carefully review the contents. It is generally recommended to monitor personal accounts and credit reports for any suspicious activity and to remain vigilant against unsolicited communications that may attempt to acquire further personal details. Protecting your data begins with understanding the nature of such security events.

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.

Source: Indiana Attorney General filing

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