Zelenkofske Axelrod, LLC, a Certified Public Accountant firm based in Pennsylvania, has reported a data security incident involving its internal network. The firm provides auditing, accounting and tax services to businesses, non-profits and government entities.
Because the firm works with other organizations’ records, people may learn about the incident through a client’s notice, not from the firm directly. This page summarizes what is publicly known.
Zelenkofske Axelrod, LLC’s Data Breach Investigation
Zelenkofske Axelrod, LLC, which uses the short name ZA, describes itself as a regional CPA firm with offices in Pennsylvania, Delaware and Maryland. It specializes in auditing, accounting and tax services for non-profit and governmental entities. Firms like this hold detailed financial and personnel records for their clients, which can include data about the clients’ customers, members and employees.
A notice sent by Pennie, the health insurance marketplace for Pennsylvania, gives the clearest account of what happened. The notice says that around January 25, 2026, ZA became aware of suspicious activity within its internal network environment and began an investigation with the help of third-party cybersecurity specialists. It says ZA has no evidence that the information has been misused. The notice does not say how the intruder got in or who was behind it.
Pennie states that ZA told it about the incident on October 27, 2026, and that it is notifying people because information related to them was in the affected files. Pennie says only the contractor was affected and that Pennie’s own systems and websites were not involved. In other words, the incident was reported to Pennie’s customers months after ZA first noticed the suspicious activity.
On November 6, 2026, the Vermont Attorney General’s office listed Zelenkofske Alexrod, LLC in its public table of security breach notices. The state’s table spells the firm’s name differently from the firm’s own website, but the entry is for the same firm. It lists 3 affected Vermont residents, and the figure counts only Vermont residents. The firm has not published a total number of people affected, so the nationwide figure may be higher.
The Vermont entry lists a wider range of data than the Pennie notice. It names Social Security numbers, government ID numbers, financial account codes, credit and debit account information, health records and login credentials. These are the categories reported to Vermont for the firm’s filing as a whole, and the filing does not say which categories apply to which person. The Pennie notice, by contrast, describes a narrower set of data for people who were enrolled through Pennie.
That difference matters. Someone who received the Pennie notice should read it as describing the information ZA held about Pennie enrollees, and Pennie states that Social Security numbers, contact information, income information, passwords and financial information were not part of that data. Someone who received a letter from ZA directly, or from another client of the firm, may have a different set of data involved. The letter you received is the best guide to what applies to you.
Accounting firms are attractive targets for data theft because their records are organized, complete and valuable. Tax and audit files can hold identification numbers, bank details and payroll information, and they are often shared with the firm by many clients. When an accounting firm is affected, the clients that sent it data are frequently the ones that have to notify the people involved, which can lead to separate notices over time.
The public sources do not say how many of ZA’s clients were affected, how many people received notices, or whether ZA offered credit monitoring. They also do not say whether the data was copied, deleted or only viewed. This page does not guess at those details and will reflect what is confirmed as more information becomes public.
If you received a notice that mentions Zelenkofske Axelrod, keep it, and use the contact details in it. ZA lists a Harrisburg, Pennsylvania mailing address and a call center number in the Pennie notice. If you did not receive a notice but have worked with an organization that used ZA for audit, accounting or tax services, you can ask that organization whether your information was included.
When Did This Breach Occur?
ZA says it became aware of suspicious activity around January 25, 2026. The notice from Pennie does not say when the unauthorized access began or ended.
Pennie says it was told about the incident on October 27, 2026. The Vermont Attorney General’s office listed the filing on November 6, 2026.
What Information Was Breached?
The Pennie notice says the information ZA held about Pennie enrollees was limited to first and last name, date of birth, zip code, enrollment ID, enrollee ID, exchange ID, insurance plan, plan ID, insurance type, plan level, plan start and end date, and premium amount. Pennie says Social Security numbers, contact information, income information, passwords and financial information were not included.
The Vermont filing lists Social Security numbers, government ID numbers, financial account codes, credit and debit account information, health records and login credentials. Your notice should say which items apply to you.
What You Can Do
If you received a notice related to Zelenkofske Axelrod, LLC or believe you may be affected, consider these steps:
- Read the notice carefully and keep it, along with any enrollment details for protection services it offers.
- If you were notified by Pennie, watch for messages that claim to be from Pennie or your insurer and ask for personal details. Confirm any contact through the official website of the organization instead.
- Place a free fraud alert or a credit freeze with Equifax, Experian and TransUnion, and get your reports free at annualcreditreport.com.
- Review bank, card and insurance statements for anything you do not recognize.
- Be skeptical of unexpected calls, texts or emails that mention the incident, and report suspected identity theft to the Federal Trade Commission at identitytheft.gov.
File a Data Breach Lawsuit Against Zelenkofske Axelrod, LLC
If you received a notice connected to Zelenkofske Axelrod, you may have legal options. A data breach lawsuit can seek compensation for the loss of privacy, the time spent protecting yourself and any out-of-pocket costs, and can press an organization to improve how it safeguards personal information. Whether a claim makes sense depends on the facts of the incident, including what information was involved for you. Keep your notice letter and any records of suspicious activity or expenses, since they may matter later.
Contact us at Class Action U, where we’ll connect you with a lawyer skilled in class action lawsuits. If you’ve been contacted about this breach, received notice, or discovered you were impacted, fill out our quick, easy, and secure form to sign up. There is no cost to reach out to our legal partner and no obligation after speaking with someone from our team.
