Sullivan Environmental Services Reports 2026 Indiana Data Breach

Sullivan Environmental Services Inc. disclosed a data breach to Indiana regulators on July 31, 2026, after identifying an incident that occurred on September 4, 2025. The breach exposed sensitive personal data, including Full Name, Social Security Number, and Direct Deposit Account Details, for an unspecified number of individuals. Affected parties should monitor their financial accounts and credit reports for any signs of misuse.

State: Indiana
Breach date: September 4, 2025
Reported: July 31, 2026

What may have been exposed

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

Sullivan Environmental Services Inc., an environmental engineering and remediation firm, publicly filed notice of a data breach with Indiana state authorities on July 31, 2026. The company identified this breach as having occurred on September 4, 2025. According to the public filing, the investigation into this incident remains ongoing.

The compromised information includes Full Name, Social Security Number, Date of Birth, Home Address, Wage and Compensation Information, Direct Deposit Account Details, Tax Record Information, and Phone Number. The exposure of these types of personal and financial identifiers can lead to various risks for affected individuals.

Such data exposures can arise from unauthorized access to company systems, often through cyberattacks or vulnerabilities within digital infrastructure. Organizations are generally expected to implement and maintain reasonable security measures to safeguard the sensitive personal data they collect and store.

Individuals who receive a notification regarding this breach should exercise increased vigilance. It is important to carefully review all financial statements and credit reports for any unauthorized transactions or suspicious activity. Consider placing a fraud alert on your credit file or initiating a credit freeze with the three major credit bureaus to help prevent new accounts from being opened fraudulently in your name.

Additionally, regularly updating passwords for online accounts and being cautious of unsolicited communications, especially those requesting personal information, are prudent protective steps. These general precautions can help mitigate potential risks following a data exposure 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.

Source: Indiana Attorney General filing

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