DataBreachInformation.com
MonitoringWashington AG filing · August 20, 2026

Southern Illinois University Reports Data Exposure in Washington

Southern Illinois University filed a data breach notice in Washington on August 20, 2026, indicating personal information was exposed. The incident impacts individuals whose Full Name, Date of Birth, Social Security Number, Student ID Number, Financial Aid and Tuition Records, Wage and Compensation Information, and Home Address and Contact Information were compromised. Affected individuals should monitor their accounts and records for suspicious activity.

State
Washington
Reported
August 20, 2026

What may have been exposed

  • Full Name
  • Date of Birth
  • Social Security Number
  • Student ID Number
  • Financial Aid and Tuition Records
  • Wage and Compensation Information
  • Home Address and Contact Information

Southern Illinois University (SIU) has reported a data security incident to regulators in Washington State, with the filing dated August 20, 2026. This notification confirms an exposure of sensitive personal data following an unspecified breach type. The university, a large institution managing extensive records, is currently monitoring the situation as part of its investigation.

The compromised data includes Full Name, Date of Birth, Social Security Number, Student ID Number, Financial Aid and Tuition Records, Wage and Compensation Information, and Home Address and Contact Information. Such categories of personal data, if misused, could lead to various risks for affected individuals. The university did not specify the number of people affected by this incident.

Individuals who receive a formal notification from Southern Illinois University are advised to carefully review its contents. It is recommended to remain vigilant for any unusual activity in personal financial accounts or unexpected communications. Regularly checking credit reports and statements for unauthorized transactions can help detect potential misuse of exposed information.

To safeguard against potential identity theft or fraud, consider placing a fraud alert or security freeze on your credit files. These measures can make it more difficult for unauthorized parties to open new accounts in your name. Additionally, be wary of unsolicited emails, texts, or calls requesting personal information, as these could be phishing attempts related to the breach.

This information is based on public data breach filings made with state regulators.

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 Southern Illinois University data breach

How many people were affected by the Southern Illinois University 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, Student ID Number, Financial Aid and Tuition Records, Wage and Compensation Information, Home Address and Contact Information. 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 Southern Illinois University breach notice?
Southern Illinois University's report is published by the Washington Attorney General: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA42450.pdf Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Southern Illinois University 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 Southern Illinois University data breach letter legit or a scam?
A notice from Southern Illinois University in the mail matches the breach Southern Illinois University reported to the Washington Attorney General on August 20, 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 Southern Illinois University through a phone number or website you find yourself.
Did Southern Illinois University offer free credit monitoring?
Any free monitoring Southern Illinois University is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Using the free service won't stop you from joining a lawsuit or settlement later.
Can I sue Southern Illinois University over the data breach?
It depends on what was exposed, the law in Washington 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 Southern Illinois University 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 Southern Illinois University. 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 Southern Illinois University data breach settlement or claim be worth?
There is no set amount, and no Southern Illinois University 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 Southern Illinois University 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: Washington Attorney General filing

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Southern Illinois University Data Breach 2026: Filing Record