Seyfarth Shaw Data Breach Lawsuit Investigation
Received a September 2026 breach notice from Seyfarth Shaw?
Dapeer Law, P.A. is investigating a potential class action against Seyfarth Shaw LLP, an international law firm headquartered in Chicago, Illinois, on behalf of individuals whose names and Social Security numbers were exposed when documents were emailed to an unauthorized recipient in August 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 Seyfarth Shaw dated September 2026.
- Your letter offered enrollment in free Cyberscout credit monitoring (TransUnion).
- Your personal information was held by Seyfarth Shaw in the course of legal services the firm performed, for example in its representation of a client such as AAA Mountain West Group or in connection with a class action settlement it handled.
- 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 the notice Seyfarth Shaw LLP ("Seyfarth") filed with the California Attorney General, on August 18, 2026 the firm identified the unauthorized acquisition of a limited number of documents containing personal information. The documents were sent by email to an unauthorized recipient. Seyfarth states that its investigation found no evidence that its broader network was compromised.
Seyfarth began mailing notification letters on or around September 18, 2026. The notice states that the affected documents contained individuals' names and Social Security numbers. Seyfarth is offering 24 months of complimentary single-bureau credit monitoring, credit reports, credit scores, and fraud assistance through Cyberscout, a TransUnion company. The total number of affected individuals has not been publicly disclosed.
The sample letters indicate Seyfarth obtained this information while performing legal services for clients, including in its representation of AAA Mountain West Group and in connection with a class action settlement. People whose Social Security numbers are held by a law firm often have no direct relationship with that firm. Whether Seyfarth's safeguards for sensitive client and third-party data, including controls on outbound email, met legal standards is among the issues being evaluated.
What to do if you received a letter
Keep your notice letter
Do not discard it. Your letter contains the enrollment code for credit monitoring and is important evidence if you decide to participate in a lawsuit.
Enroll in the free 24-month credit monitoring
Enroll in the Cyberscout (TransUnion) monitoring offered in your letter within 90 days of the letter date. Accepting this benefit does not waive your right to pursue legal action.
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.
Speak with a data breach attorney
Consultations with Dapeer Law are free and confidential. We'll review your notice, explain your options, and advise whether you may be eligible to join a class action.
Submit your notice for a free review
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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, 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 the firm to implement stronger data security practices, including controls on how documents containing sensitive personal information are shared by email.
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 Seyfarth Shaw. What should I do? +
Keep the letter, enroll in the free 24-month Cyberscout credit monitoring within 90 days of the letter date, review your bank, credit card, and insurance statements for unfamiliar activity, and consider a fraud alert or security freeze. Because your Social Security number was involved, watch for new accounts or tax filings you did not open. You can also contact a data breach attorney for a free consultation. Accepting credit monitoring does not waive your right to sue.
Am I eligible to join a class action against Seyfarth Shaw? +
If you received a September 2026 breach notice from Seyfarth Shaw stating that your name and Social Security number were involved, you are likely eligible for a free case evaluation. Eligibility depends on your state of residence, the categories of your data that were exposed, and any losses you have suffered. Dapeer Law will review your notice at no cost.
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? +
Seyfarth Shaw's notice states that the affected documents contained names and Social Security numbers. Your individual notice letter should confirm which of your information was involved and why the firm held it.
Did Seyfarth Shaw offer free credit monitoring? +
Yes. Seyfarth Shaw is providing 24 months of complimentary single-bureau credit monitoring, credit reports, credit scores, and fraud assistance through Cyberscout, a TransUnion company. Enroll within 90 days of the date on your letter. Enrollment is separate from, and does not waive, your right to pursue a claim.
How many people were affected by the Seyfarth Shaw breach? +
The total number of affected individuals has not been publicly disclosed in the California Attorney General filing. This page will be updated as additional information becomes available.
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? +
The sample notice filed with the California Attorney General is available as a PDF on the California AG's website (linked in Sources below). 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 · California Attorney General, Seyfarth Shaw Notice of Data Event (PDF)
- Company · Seyfarth Shaw LLP (seyfarth.com)
- 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.
