Neil I. Sidi, C.P.A. Data Breach Lawsuit Investigation
If you received a letter about the February 2026 security incident, you may qualify for complimentary credit monitoring and potential monetary relief. Contact our data-breach team for a free, confidential case evaluation today.
Incident Summary
Neil I. Sidi, C.P.A. (Neil I. Sidi, C.P.A.) reported a network security incident that was discovered on February 20, 2026 and occurred in late January 2026. The firm secured its systems, engaged third-party forensic specialists, and alerted law enforcement. Consumer notification letters were mailed on March 13, 2026 and the breach was reported to the Maine Attorney General on March 17, 2026.
Information Exposed
The review of impacted files determined that some or all of the following data elements were at risk:
Name
Address
Social Security number
Date of birth
Financial information
Health insurance information
At this time the firm states it has no evidence of misuse but is notifying individuals out of an abundance of caution.
Company Response
Isolated and secured affected network systems.
Engaged external cybersecurity and forensic experts to investigate.
Reported the incident to law enforcement.
Implemented enhanced security protocols.
Offered 12 months of Single-Bureau Credit Monitoring, Credit Report, and Credit Score services, plus proactive fraud assistance through Cyberscout (a TransUnion company) at no cost to affected individuals.
Your Next Steps
Affected consumers should consider the following actions outlined in the official notice:
Enroll in the complimentary Cyberscout credit-monitoring service by the deadline in your letter.
Place a fraud alert by contacting any one of the three nationwide credit bureaus:
Experian | 888-397-3742
Equifax | 800-525-6285
TransUnion | 800-680-7289
Obtain free annual credit reports at AnnualCreditReport.com or 877-322-8228 and review them for unfamiliar activity.
Consult the Federal Trade Commission’s identity-theft resources at ftc.gov/idtheft or 877-438-4338.
Company Overview
Website: nsidicpa.com
Headquarters: 450 Seventh Avenue, Suite 2407, New York, NY, USA
Industry: Accounting / Tax Services
Primary Service: Certified Public Accounting
Sources
Impacted Entities
Frequently Asked Questions
I received a data breach letter from Neil I. Sidi, C.P.A. — what should I do?
Follow the instructions in the letter: enroll in the free Cyberscout credit-monitoring service, review your credit reports, and monitor financial accounts closely. Report any suspicious activity immediately.
How do I submit a claim related to the Neil I. Sidi, C.P.A. data breach?
Contact our legal team using the form on this page or by phone for a no-cost consultation. We will explain eligibility and next steps for pursuing compensation.
Am I eligible to join a lawsuit against Neil I. Sidi, C.P.A.?
If your personal information was included in the breach notification, you may have legal claims for statutory damages or other relief. Speak with a data-privacy attorney to confirm your rights.
What information did the Neil I. Sidi, C.P.A. breach expose?
Potentially exposed data includes name, address, Social Security number, date of birth, financial information, and health-insurance information.
Did Neil I. Sidi, C.P.A. offer credit monitoring, and for how long?
Yes. Impacted individuals received an offer for twelve months of Single-Bureau Credit Monitoring, Credit Report, and Credit Score services through Cyberscout.
How many people were affected by the Neil I. Sidi, C.P.A. breach?
The total number of impacted individuals has not been publicly disclosed in the Maine Attorney General filing.
How can I get the official breach notice (PDF) for Neil I. Sidi, C.P.A.?
You can download it directly from the Maine Attorney General’s website using the button above or this link.
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