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Sullivan Environmental Services Inc data breach investigation

Sullivan Environmental Services Inc has reported a cybersecurity incident to the Indiana Attorney General. The breach, confirmed July 31, 2026, exposed sensitive data like Social Security Number and bank details, placing individuals at risk of identity theft and financial fraud.

Filed
July 31, 2026
Regulator
Indiana AG
People affected
Not stated
File status
Monitoring

What the filing confirms

  • Sullivan Environmental Services Inc reported the incident to the Indiana Attorney General.
  • Information involved: Full Name, Social Security Number, Date of Birth, Home Address, Wage and Compensation Information, Direct Deposit Account Details, Tax Record Information, Phone Number.

Still unknown

  • How many people were affected. The filing does not give a number.
  • What caused the incident beyond the description in the filing.
  • How the attackers got in, and whether basic safeguards such as multi-factor sign-in were in place.
Read the filing at the source

Investigation notes

Sullivan Environmental Services Inc formally notified the Indiana Attorney General on July 31, 2026, about a significant data breach. This incident, which reportedly occurred on September 4, 2025, involved unauthorized access to the company's systems, compromising personal information maintained by the environmental engineering firm.

The compromised data categories include highly sensitive personal identifiers. The company has confirmed that Full Name, Social Security Number, Date of Birth, Home Address, Wage and Compensation Information, Direct Deposit Account Details, Tax Record Information, and Phone Number were exposed during the breach.

Exposure of such detailed personal and financial data carries substantial risks for affected individuals. Those whose Social Security Number and Direct Deposit Account Details were compromised face an elevated threat of identity theft, fraudulent financial transactions, and tax-related scams. This breach could lead to long-term vulnerability to targeted phishing attempts and other forms of financial exploitation.

Under Indiana state law and federal regulations, Sullivan Environmental Services Inc had a legal obligation to implement robust security measures to protect the private data entrusted to its care. The occurrence of this data breach suggests a potential failure in upholding these duties, warranting a closer examination of the company's cybersecurity practices and compliance with data protection standards.

If you have received a data breach notification from Sullivan Environmental Services Inc, it confirms your data was part of this incident. Understanding your legal rights and options is crucial, as you may be entitled to compensation. Our firm is currently monitoring this investigation and offers a free case review to help affected individuals explore their legal standing.

What our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether Sullivan Environmental Services Inc used reasonable security, how long it kept the data, and how quickly it told the people affected. Those questions decide whether a class action or individual claim is possible. Read more on how ransomware lawsuits work, or browse other incident files in Indiana.

Sullivan Environmental Services Inc data breach questions

How many people were affected by the Sullivan Environmental Services 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, Home Address, Wage and Compensation Information, Direct Deposit Account Details, Tax Record Information, Phone Number. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Is the Sullivan Environmental Services Inc data breach letter legit or a scam?
A notice from Sullivan Environmental Services Inc in the mail matches the breach Sullivan Environmental Services Inc reported to the Indiana Attorney General on July 31, 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 Sullivan Environmental Services Inc through a phone number or website you find yourself.
Did Sullivan Environmental Services Inc offer free credit monitoring?
Check your letter from Sullivan Environmental Services 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. Signing up doesn't waive any legal rights you may have.
Is there a Sullivan Environmental Services 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 Sullivan Environmental Services 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.
What should I do after getting the Sullivan Environmental Services 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.
Where can I see the official Sullivan Environmental Services Inc breach notice?
Sullivan Environmental Services Inc's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#8sullivan-environmental-services-inc-2026 Compare it with the letter you received to confirm the dates and details match.
Do I need a Sullivan Environmental Services 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.
Can I sue Sullivan Environmental Services 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.
How much could a Sullivan Environmental Services Inc data breach settlement or claim be worth?
There is no set amount, and no Sullivan Environmental Services 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.

Other open files in Indiana

Attorney advertising. An incident file reflects a public regulator filing and our review of it; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.