Eisner Advisory Group Data Breach Settlement: $1.05 Million, Claim Deadline October 8, 2026
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This is why the case is in the news: the eisner advisory group settlement of the 2023 data breach has a claim deadline of October 8, 2026 on the mailed notice, and the court holds its final approval hearing on October 13, 2026. EisnerAmper LLP and Eisner Advisory Group LLC agreed to pay $1,050,000. Class members could claim an estimated $100 cash payment with no proof, up to $5,000 for documented losses, credit monitoring, and an extra $50 for California residents.
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Reviewed by Leonard Goldberg, Editor · Last updated
What the Eisner Advisory Group Lawsuit Alleged
Eisner Advisory Group is a business consulting firm. Per the settlement agreement, Eisner became aware of suspicious activity on or around September 9, 2023, and its investigation found unauthorized access to a limited set of information between September 4 and September 9, 2023. The files could have included names, Social Security numbers, financial account information, dates of birth, medical information and health insurance information.
Eisner identified approximately 82,459 people and began mailing breach notices on April 8, 2025 — more than a year and a half after the incident. The court's orders describe the breach as affecting more than 85,000 individuals. The eisner advisory group lawsuit alleged negligence, breach of third-party beneficiary contract, breach of fiduciary duty, breach of confidence, unjust enrichment and, for California residents, violation of the California Consumer Privacy Act. Eisner denies all wrongdoing and liability.
Case Details
The case is In re Eisner Advisory Group Data Breach Litigation, No. 0:25-cv-01409-LMP-DTS, in the U.S. District Court for the District of Minnesota, before Judge Laura M. Provinzino. It began as Niosi v. Eisner Advisory Group, filed April 8, 2025. On May 27, 2025 the court consolidated it with No. 25-cv-1568 and Crist v. EisnerAmper LLP, No. 25-cv-1573. A parallel eisner advisory group class action in New York, Fallen v. Eisner Advisory Group, LLC, No. 25-cv-03044 (S.D.N.Y.), was transferred to Minnesota on February 25, 2026. Both groups of plaintiffs filed one amended complaint on April 8, 2026, signed the settlement agreement dated May 1, 2026, and the court granted preliminary approval on June 11, 2026. Official documents are posted at EisnerDataSettlement.com.
Status: Preliminarily Approved, Claims Closing, Hearing October 13
The final approval hearing is set for October 13, 2026 at 2:00 p.m. CDT in Courtroom 3A of the Warren E. Burger Federal Building, 316 Robert Street N., St. Paul. No money is paid until the court grants final approval and any appeals are resolved. The court can move the hearing without new notice.
Don't miss the claim deadline
Claims are due by October 8, 2026. We'll email you 7 days and 1 day before the deadline.
Who Is in the Settlement Class
The settlement class is everyone affected by the Eisner data incident discovered in September 2023, including people who received a notice letter from Eisner about it. Eisner, its officers, the judge and court staff, and people who opted out are excluded.
Your proof of membership is the postcard. The court-approved notice was mailed by the settlement administrator, Verita Global, and carries a Claim ID and PIN you need to file online. California residents are in a California Subclass with an extra payment. If you never got a breach letter or a postcard but think your data was involved, contact the administrator at 1-888-808-5813 rather than a third party.
What the Eisner Settlement Pays
Cash payment: estimated at $100 per claimant, no proof required. It rises or falls with the number of valid claims.
Documented losses: up to $5,000 per person for unreimbursed losses traceable to the breach — fraud, identity theft, bank fees, credit monitoring bought after September 4, 2023. Third-party documentation is required; handwritten receipts alone are not enough. This option has to be filed online.
California payment: an extra $50 for California Subclass members, reducible pro rata.
Credit monitoring: two years of single-bureau monitoring with at least $1,000,000 of identity theft insurance.
Before anyone is paid, the fund also covers administration costs, attorneys' fees of up to one-third ($350,000) plus expenses, and service awards of up to $2,500 per class representative — all subject to the judge's approval.
How cases like this one end
Our copy of the federal courts’ own case database covers 15,171 other personal property damage casesclosed in U.S. federal district courts between 2015 and 2025, 10.4% of them filed as class actions:
- 33.2% ended in a settlement recorded by the court. Another 19.2% were dismissed voluntarily, which often follows a private settlement — so the real settlement share sits between 33.2% and 52.3%.
- 5.9% were decided on a motion before any trial.
- 1 in 90 reached a trial (1.1%), after a median of 27.4 months.
- Median time from filing to the end of the case: 8.5 months.
- Only 236 of them (1.6%) record a money award at all; the median of those is $496,000.
These are base rates for this type of case (federal other personal property damage cases) — not a prediction about this lawsuit, and not legal advice. Source: Federal Judicial Center, Integrated Database (civil), analysed by Settlement Insight. Cases heard in state courts are not included.
Eisner Advisory Group Breach and Settlement Timeline
- 1
September 4–9, 2023 — The Breach
An unauthorized party accesses a limited set of Eisner files. Eisner spots suspicious activity around September 9, 2023.
- 2
April 8, 2025 — Notices and First Lawsuit
Eisner begins mailing breach notices to about 82,459 people. The first suit, Niosi v. Eisner Advisory Group, is filed in Minnesota the same day; a New York suit follows on April 11, 2025.
- 3
May 27, 2025 — Minnesota Cases Consolidated
Judge Laura M. Provinzino combines the Minnesota suits into In re Eisner Advisory Group Data Breach Litigation. The New York case is transferred in on February 25, 2026.
- 4
June 11, 2026 — Preliminary Approval
The court preliminarily approves the $1,050,000 settlement dated May 1, 2026 and appoints Verita Global as administrator. Notice goes out by July 10, 2026.
- 5
October 8, 2026 — Claim Deadline
Claims must be filed online or postmarked by October 8, 2026 per the mailed notice (the court schedule lists October 9, 2026).
- 6
October 13, 2026 — Final Approval Hearing
Judge Provinzino decides whether to grant final approval and rules on attorneys' fees. Payments follow only after final approval and any appeals.
Three Things to Watch For
A breach that exposed Social Security and financial account numbers, with a claim form tied to a Claim ID and PIN, invites imitation:
Look-alike claim sites
The only court-approved site is EisnerDataSettlement.com. The real claim form asks for your Claim ID, PIN, contact details and, for losses, receipts — never your full Social Security number or bank login.
“Late claim” or “payment release” fees
After October 8, 2026, expect messages offering to file a late claim or speed up your payment for a fee. Settlement benefits are paid from the fund; the administrator never charges claimants.
Calls or texts posing as EisnerAmper
A caller may claim to be from Eisner or EisnerAmper. Hang up and call the number on the official notice, 1-888-808-5813, or your own Eisner contact before sharing anything.
Eisner Advisory Group Data Breach — Questions People Actually Ask
Is the Eisner Advisory Group settlement real?
Yes. It is a court-supervised settlement in In re Eisner Advisory Group Data Breach Litigation, No. 0:25-cv-01409 (D. Minn.), preliminarily approved on June 11, 2026. The postcard comes from the settlement administrator, Verita Global, P.O. Box 301132, Los Angeles, CA 90030-1132.
What is the claim deadline?
The mailed notice and claim form say October 8, 2026, online or by postmark. The court's schedule lists October 9, 2026. Treat October 8 as the deadline. Claims after the deadline are not guaranteed to be accepted.
How much will I get?
The cash payment is estimated at $100 and will be adjusted by the number of valid claims. Documented losses are reimbursed up to $5,000 with proof, California residents can add $50, and anyone can choose two years of credit monitoring. Final amounts are known only after claims close.
When will payments be sent?
Only after the court grants final approval and any appeals are resolved. The final approval hearing is October 13, 2026. Check the official website for the payment date rather than third-party estimates.
I got an Eisner breach letter but no postcard. Am I included?
The class covers everyone affected by the September 2023 incident, including people who received Eisner's notice letter. Call the administrator at 1-888-808-5813 to confirm your status and get a Claim ID.
What data was exposed in the Eisner Advisory Group data breach?
Per the settlement agreement: names, Social Security numbers, financial account information, dates of birth, medical information and health insurance information. Your notice letter lists which applied to you.
What happens if I did nothing?
If the settlement is approved, you receive no benefits and you give up the right to sue Eisner over this breach. The opt-out deadline passed in September 2026.
What should I do now, beyond the claim?
Freeze your credit at all three bureaus, watch bank and health insurance statements, and keep your notice and any receipts for breach-related costs. With Social Security numbers involved, consider an IRS Identity Protection PIN.
Separate from this case: were you injured in the last 2 years?
Class-action payouts are fixed amounts through an administrator. A personal injury claim is a different case — and often worth far more. Free estimate, no obligation.
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