Almeida Law Group is investigating a data breach at KerberRose S.C. The breach occurred on 04/29/2026 and was discovered on 05/01/2026. If you were affected, contact Almeida Law Group.
About KerberRose S.C.
KerberRose S.C. is a CPA firm founded in 1979 and headquartered in Shawano, Wisconsin, with 13 office locations across Wisconsin and Michigan’s Upper Peninsula. The firm employs more than 225 professional advisors and offers accounting, tax, audit, payroll, wealth management, and related services. This breach was isolated to KerberRose Wealth Management, LLC, an SEC-registered investment advisor affiliated with the firm that manages approximately $909.8 million in assets and serves roughly 2,911 clients, including retirement plan participants and wealth management customers.
What Happened?
KerberRose S.C. was listed in a Maine Attorney General filing submitted on May 29, 2026. The incident was an external system breach (hacking). According to the breach notification letter, an unauthorized third party gained access to one employee’s email account on April 29, 2026, which led to limited access to a portion of a back-up platform used in KerberRose’s wealth management business. The breach was discovered on May 1, 2026, and consumer notification letters were sent on May 29, 2026. A total of 27,076 individuals were affected. The personal information involved may have included names, addresses, Social Security numbers, financial account numbers, bank account information, and dates of birth. KerberRose stated that no other systems or divisions were impacted, and that its CPA and tax services offered through KerberRose S.C. were unaffected. KerberRose is offering 24 months of identity monitoring and theft resolution services through TransUnion Cyberscout at no charge to affected individuals.
No ransomware group or specific threat actor has been publicly linked to this incident, and no independent news coverage of the breach was found beyond the Maine AG filing. No prior breaches were identified for KerberRose S.C. or KerberRose Wealth Management, LLC, and no class action litigation connected to this incident was found as of May 30, 2026.
Key Facts at a Glance
- Company or Organization: KerberRose S.C. (breach isolated to KerberRose Wealth Management, LLC)
- Industry: Accounting / Financial Services (CPA firm with wealth management division)
- Location: 115 E. Fifth St., Shawano, WI 54166
- Incident type: External system breach (hacking)
- Date of breach: April 29, 2026
- Date breach discovered: May 1, 2026
- Date of consumer notification: May 29, 2026
- Total persons affected: 27,076
- Identity theft protection offered: Yes — 24 months through TransUnion Cyberscout
- Source: Maine AG Filing; KerberRose Wealth Management SEC/RIA Profile; KerberRose Office Locations
What Should You Do?
If you received a notification letter from KerberRose, consider enrolling in the 24-month identity monitoring service offered through TransUnion Cyberscout as soon as possible using the unique code provided in your letter. Because Social Security numbers, financial account numbers, and bank account information were potentially involved, you should also consider placing a fraud alert or credit freeze with the three major credit bureaus — Equifax, Experian, and TransUnion. Review your bank and financial account statements carefully for any unfamiliar transactions and monitor your credit reports at AnnualCreditReport.com. If you suspect your information has been misused, visit IdentityTheft.gov for guidance on next steps.
Your Legal Rights
If your personal information was involved in this breach, you may have legal rights depending on the facts of the incident and the law in your state. Almeida Law Group represents consumers in data breach and privacy litigation and can help you evaluate whether you may have a claim. Contact us at (708) 529-5418 or through our contact page for a free case evaluation.
