Sullivan Environmental Services, Inc. Data Breach Lawsuit Investigation
Received a July 2026 breach notice from Sullivan Environmental Services?
Dapeer Law, P.A. is investigating a potential class action against Sullivan Environmental Services, Inc., a Galveston, Texas environmental services company, on behalf of individuals whose personal information may have been exposed in a cyber incident the company confirmed in July 2026.
Who may qualify
You may be eligible to participate in a class action if any of the following applies:
- You received a data breach notification letter from Sullivan Environmental Services dated July 2026.
- Your letter referred you to the Cyberscout assistance line or to the identity-protection guidance enclosed with the notice.
- You provided personal, financial, or health insurance information to Sullivan Environmental Services as a current or former employee, contractor, or customer.
- No proof of harm required to consult with counsel. You do not need to have already suffered identity theft to explore your legal options.
- Excluded: individuals who did not receive a breach notice and whose information was not involved in the incident.
Not sure if you qualify?
Send us your notice, we'll confirm your eligibility at no cost.
What happened
According to a breach notice filed with the Massachusetts Attorney General, Sullivan Environmental Services, Inc. ("Sullivan Environmental Services") detected suspicious activity within its computer environment and began an investigation with outside cyber-security specialists. On July 28, 2026, the company confirmed that an unauthorized actor had acquired certain data and that it had gathered enough information to notify the individuals involved. Written notices began going out on July 31, 2026, the same day the company filed with the Massachusetts Attorney General, and a parallel filing was submitted to the Texas Attorney General on August 4, 2026. The notice does not say when the suspicious activity was first detected or how long the unauthorized access lasted.
State regulatory filings report 406 affected individuals, consisting of 399 Texas residents and 7 Massachusetts residents. The categories of information reported vary by filing and may have included name, Social Security number, driver's license number, credit or debit card number, financial account number, and health insurance information. Each recipient's letter should identify the categories that apply to that person. The company states that it has no evidence of any actual or suspected misuse of the information involved, that it secured its network and reviewed the affected data, and that it has implemented additional security measures. The notice directs recipients to Cyberscout at 1-800-405-6108 for assistance, but it does not state that complimentary credit monitoring is being provided or for how long.
The combination reported across the state filings, Social Security numbers together with payment card, financial account, and health insurance details, is the kind of data set that can support both financial fraud and medical identity theft, and a Social Security number cannot be reissued the way a card number can. Whether Sullivan Environmental Services maintained reasonable safeguards for that information, how long the unauthorized actor had access before the activity was detected, and whether the notice gave recipients enough detail to protect themselves are among the questions being evaluated. This page will be updated as more information becomes available.
What to do if you received a letter
Keep your notice letter
Do not discard it. Your letter identifies the categories of your information that were involved and is important evidence if you decide to participate in a lawsuit.
Review your bank, card, and insurance statements
Because the state filings report payment card, financial account, and health insurance information among the categories involved, review your statements line by line for charges, transfers, or claims you did not authorize. Report anything unfamiliar to your bank, card issuer, or insurer in writing, and keep copies of what you send.
Place a fraud alert or credit freeze
Contact Equifax, Experian, and TransUnion to place a fraud alert or freeze on your file. Request a free weekly credit report from AnnualCreditReport.com, and use the FTC's IdentityTheft.gov recovery guide. A security freeze is free at all three bureaus and does not affect your credit score.
Speak with a data breach attorney
Consultations with Dapeer Law are free and confidential. We'll review your notice, explain your options under the Texas Identity Theft Enforcement and Protection Act, the Massachusetts data breach statute (M.G.L. c. 93H), and related state law, and advise whether you may be eligible to join a class action.
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Breach timeline
Compensation you may be entitled to
Out-of-pocket expenses
Credit freezes, identity restoration services, and other costs incurred responding to the breach.
Time spent monitoring
Hours spent reviewing accounts, disputing fraudulent charges, and dealing with identity theft issues.
Identity theft & fraud losses
Unreimbursed funds stolen from accounts, unauthorized credit lines, unauthorized card and account charges, medical-claim fraud, or tax refund fraud tied to the breach.
Statutory damages
Certain state data breach and consumer protection statutes provide for fixed damages regardless of actual loss.
Injunctive relief
Court orders requiring Sullivan Environmental Services to implement stronger data security practices going forward, including tighter access controls and shorter retention of Social Security numbers and financial account information.
Compensation categories depend on applicable state law, the types of data exposed, and documented losses. No recovery is guaranteed.
Common questions
I received a data breach letter from Sullivan Environmental Services. What should I do? +
Keep the letter. Review the guidance section enclosed with it, then check your bank, credit card, and health insurance statements for activity you did not authorize. Because Social Security numbers are among the categories reported in the state filings, consider placing a fraud alert or a free security freeze with Equifax, Experian, and TransUnion, and request your free weekly credit reports at AnnualCreditReport.com. A data breach attorney can review your notice at no cost.
Am I eligible to join a class action against Sullivan Environmental Services? +
If you received a July 2026 data breach notice from Sullivan Environmental Services, you are likely eligible for a free case evaluation. Eligibility depends on your state of residence, the categories of your data that were involved, and any losses you have documented. Dapeer Law will review your notice at no cost and with no obligation.
How much money could I receive from a class action lawsuit? +
Data breach class action recoveries vary significantly. Settlements typically range from a few hundred dollars for basic out-of-pocket losses to several thousand dollars for documented identity theft, with class size, damages, and negotiation all affecting the final amount. No payout is guaranteed, and this investigation has not yet resulted in a settlement.
What personal information was exposed in the breach? +
The state regulatory filings report that the information involved varied by individual and may have included name, Social Security number, driver's license number, credit or debit card number, financial account number, and health insurance information. The letter itself describes the impacted information more generally. Your individual notice should confirm which categories applied to you, and this page will be updated if the company discloses additional detail.
Did Sullivan Environmental Services offer free credit monitoring? +
The notice does not state that complimentary credit monitoring is being provided, and it does not specify a monitoring duration. It refers recipients to Cyberscout at 1-800-405-6108 for assistance and sets out identity-protection steps, including fraud alerts, security freezes, free credit reports, and IRS Identity Protection PINs. If your letter includes an enrollment code for a monitoring service, enrolling does not waive your right to pursue legal action.
How many people were affected by the Sullivan Environmental Services breach? +
Regulatory filings report 406 affected individuals in total, 399 Texas residents reported to the Texas Attorney General and 7 Massachusetts residents reported to the Massachusetts Attorney General. Filings in other states could raise that number, and this page will be updated as more is known.
Is there a deadline to take legal action? +
Yes. Statutes of limitations for data breach claims vary by state and legal theory, typically ranging from one to six years. Waiting can permanently bar your claim. Contact us as soon as possible for a free evaluation.
How do I get a copy of the official breach notice? +
Sullivan Environmental Services filed its notice with the Massachusetts Attorney General, and the PDF is available through the Commonwealth's website (linked in Sources below). The company also reported the incident to the Texas Attorney General. If you received a letter but no longer have it, Dapeer Law can assist you in obtaining a copy during your free consultation.
Sources & references
- Official breach notice filing · Massachusetts Attorney General, Data Breach Notice (PDF)
- Texas filing · Texas Attorney General, Data Breach Reporting
- Credit bureau freezes · Equifax · Experian · TransUnion
- Free weekly credit reports · AnnualCreditReport.com
- Identity theft recovery guide · FTC IdentityTheft.gov
Don't let the deadline decide for you. Submit your claim today.
You only have a limited window to act. Our team will review your notice, explain your options, and tell you whether you may be eligible to recover compensation, at no cost to you.
