Studio Marchi - Studio Professionale Associato Listed by everest Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Public reports indicate that the ransomware group everest has listed Studio Marchi - Studio Professionale Associato on its leak site, claiming to have carried out a ransomware operation against the Italian professional services firm. The listing, noted on 5 May 2026, states that internal files were exfiltrated during the attack. No confirmed count of affected individuals has been released, and the organisation has not issued a public statement on the matter.

Ransomware incidents targeting professional-service firms remain a steady feature of the current threat environment. Such listings on actor-controlled sites serve as the primary public signal that data may have left the organisation, even when further details remain limited.

What happened

The only confirmed public information is the appearance of Studio Marchi - Studio Professionale Associato on the everest leak site. The group claims that internal files were removed during a ransomware attack. No further technical details, such as the precise date of intrusion, the volume of data, or the encryption status of systems, have been disclosed in available reporting. The number of individuals potentially affected is listed as unknown.

Inside everest

Everest is a ransomware operation that follows the now-common pattern of encrypting victim systems and removing copies of data before demanding payment. The group maintains a site where it lists organisations it claims to have compromised, often publishing file samples or directory listings as proof. This approach is intended to increase pressure on victims who decline to pay. Public records show the group has targeted entities across multiple countries and sectors in recent years, though each listing remains an unverified claim until independently confirmed.

Who is Studio Marchi - Studio Professionale Associato?

Studio Marchi - Studio Professionale Associato is an Italian professional partnership, a form of firm commonly engaged in accounting, tax advisory, or related professional services. Organisations of this type routinely receive and store detailed records belonging to private clients and businesses, including financial statements, tax filings, and identifying information required for regulatory compliance. A compromise at such a firm can therefore expose data that extends well beyond the organisation’s own internal records.

The information in question

The listing refers only to “internal files exfiltrated in ransomware attack.” No inventory of specific document types, client names, or data categories has been published. Professional firms in this sector typically hold client financial data, tax identifiers, correspondence, and contractual documents, but the exact contents removed in this case remain unconfirmed.

Why it matters

Files held by professional-service firms often contain information that can be used for identity verification, financial transactions, or regulatory filings. If the exfiltrated material reaches third parties, affected individuals may face risks of fraud or misuse of personal details. For the organisation itself, the incident adds to the operational and reputational consequences that follow any confirmed data removal, regardless of whether ransom demands are met.

Were you affected?

Individuals who are clients of Studio Marchi - Studio Professionale Associato or who have shared personal or financial information with the firm should monitor their accounts and correspondence for unusual activity. Checking bank statements, tax records, and credit reports at regular intervals provides a practical first step. Readers may also run a free exposure scan of their email address against known breach data sets to determine whether their information appears in previously published collections.

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