DHJJ Data Breach Lawsuit Investigation
On March 19, 2026, accounting firm DHJJ began notifying individuals that sensitive personal information was accessed during a November 2025 cybersecurity incident. If you received a breach letter, you may be entitled to free identity-protection services and potential compensation. Act now to protect your data and explore your legal options.
Key Takeaways
- Discovery date: November 21, 2025
- Consumer notices mailed: March 19, 2026
- Data exposed: name, address, date of birth, Social Security number
- Free 12-month credit monitoring and fraud assistance offered through Cyberscout (TransUnion)
Timeline of the DHJJ Cybersecurity Incident
November 21, 2025 — DHJJ detected unusual activity within its IT environment and launched an internal investigation, immediately engaging a third-party digital forensics firm.
February 13, 2026 — The investigation determined that an unauthorized party may have accessed files containing personal data.
March 19, 2026 — Written notifications were issued to impacted individuals outlining the breach details and available protective services.
Download Official Breach Notice (PDF)What Information Was Involved?
According to DHJJ’s investigation, the following information was potentially accessed:
- Name
- Address
- Date of birth
- Social Security number
Company Response
After discovering the incident, DHJJ implemented additional security measures and continues to strengthen its defenses. The firm is providing affected individuals with:
- Single-bureau credit monitoring, report, and score at no cost for 12 months
- Same-day credit-file change alerts
- Proactive fraud assistance and remediation support via Cyberscout
Steps You Can Take Now
- Enroll in the complimentary Cyberscout services by following the instructions in your notice letter.
- Review your credit reports and account statements regularly over the next 12-24 months.
- Report any unauthorized transactions to your financial institution immediately.
- Consider placing a fraud alert or credit freeze with the credit bureaus.
Legal Rights & Lawsuit Investigation
Data-breach laws allow victims to pursue damages for out-of-pocket expenses, time lost, and future risk mitigation. Attorneys are now investigating potential claims against DHJJ for failing to adequately safeguard personal information. Preserve your rights by keeping copies of all correspondence and any evidence of fraud.
Company Overview
DHJJ, Ltd. (DHJJ) is an Illinois-based accounting and advisory firm founded in 1974.
- Website: dhjj.com
- Headquarters: 184 Shuman Blvd, Suite 200, Naperville, IL, United States
- Industry: Accounting & Advisory
- Employees: 137
- Social: Facebook | X/Twitter | LinkedIn
Frequently Asked Questions
I received a data breach letter from DHJJ — what should I do?
Enroll in the free Cyberscout credit-monitoring service, monitor your financial accounts, and consider placing a fraud alert or credit freeze.
How do I submit a claim related to the DHJJ data breach?
Consult a qualified data-breach attorney to evaluate your eligibility and file the necessary paperwork for reimbursement or damages.
What information did the DHJJ breach expose?
Names, addresses, dates of birth, and Social Security numbers.
Did DHJJ offer credit monitoring, and for how long?
Yes. DHJJ is offering 12 months of complimentary single-bureau credit monitoring through Cyberscout.
How can I get the official breach notice (PDF) for DHJJ?
Use the “Download Official Breach Notice” button above or visit the Maine Attorney General’s site via the link in the Sources sidebar.
