C..er CPA Listed by SilentRansomGroup Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On March 26, 2026, the ransomware group SilentRansomGroup listed C..er CPA on its leak site and claimed to have carried out an attack that resulted in the exfiltration of internal files. No Reported Details have been released about the number of individuals affected, the volume of data involved, or the precise timeline of the intrusion. The incident is one of many recent listings involving professional-service firms that maintain large repositories of client financial records.

Inside the incident

Public information remains limited to the group’s leak-site posting. The listing asserts that internal files were removed during a ransomware operation, but neither the organization nor independent sources have stated the scope, method of initial access, or whether any data was subsequently published. The number of people potentially affected is reported as unknown.

The group behind it: SilentRansomGroup

SilentRansomGroup is a ransomware operator that employs a double-extortion model: encrypting systems and threatening to release stolen data if a ransom is not paid. The group maintains a public leak site where it lists organizations it claims to have compromised. Such listings are presented by the group as evidence of successful operations, though independent verification of the underlying claims is often unavailable at the time of posting.

About C..er CPA

C..er CPA is an accounting and tax-services firm. Organizations in this sector routinely collect and store client financial statements, tax returns, payroll records, and identifying information required for regulatory filings. A compromise at such a firm can therefore touch both the business itself and the clients whose records it maintains.

What was likely exposed

The only detail provided in the listing is that internal files were allegedly exfiltrated. The exact categories and volume of data remain undisclosed. Accounting firms of this type commonly process sensitive records, yet the specific contents of any exfiltrated material have not been confirmed by the organization or by investigators.

The real-world impact

Individuals whose information resides with C..er CPA face the possibility that personal or financial details could be used for fraud or identity theft if the material is later released or sold. The organization itself may encounter regulatory scrutiny, client notification obligations, and operational disruption while responding to the incident. Because the scale of exposure is unknown, the full extent of these risks cannot yet be quantified.

What to do if you're exposed

Anyone who is a client of C..er CPA or who has shared financial information with the firm should monitor bank and credit accounts for unusual activity and consider placing fraud alerts with major credit bureaus. Affected individuals can also run a free exposure scan of their email to check whether their information has surfaced in known breach data.

• Review recent account statements and tax documents for discrepancies.
• Enable multi-factor authentication on financial and email accounts.
• Contact C..er CPA directly for any official notifications or guidance it may issue.

AICompiled with AI assistance from public sources and published under our editorial standards.