Exco Listed by Sinobi Ransomware Group

On February 5, 2026, French accounting and consulting network Exco appeared on the leak site of the sinobi ransomware group. The listing indicates that internal files were exfiltrated during a ransomware attack on the firm, which serves businesses across France and internationally with accounting, audit, tax, HR, legal, and corporate management services.

What Public Reporting Shows

Public reporting on the sinobi leak site describes the incident as a successful ransomware deployment followed by data exfiltration. The exposed material consists of internal files. The exact number of people whose personal information appears in the files remains unknown. No confirmed timeline of initial access or precise volume of records has been published. The leak site listing itself serves as the primary public evidence of the breach.

Why This Matters for You and Your Family

When an accounting firm like Exco is breached, client records containing names, addresses, tax identifiers, financial details, and correspondence can be exposed. If you or your family have ever used an accountant, auditor, or business advisor connected to the Exco network, your information may now sit in an attacker-controlled archive. Financial and tax data is especially valuable because it can be used for identity theft, fraudulent loan applications, or targeted scams that feel personal and credible. Ordinary families rarely discover these leaks until months later when unexpected bills or tax notices arrive.

The Doxxing and Identity-Chain Implications

Stolen internal files often contain more than spreadsheets. They can include email addresses, phone numbers, client notes, and references to spouses, children, or business partners. Attackers chain these fragments together: an email from one record links to a reused password from an earlier breach, which leads to a gaming account or social-media handle, which reveals home addresses and family relationships. This identity-chain effect turns a single corporate breach into long-term personal exposure. Credential leaks like this one frequently cascade into account takeovers, including gaming accounts belonging to you or your children.

Sinobi Group's Known Track Record

Public reporting attributes the sinobi ransomware group with operations that emerged in recent years. The group typically gains initial access through common vectors such as phishing or exploited remote desktop services, exfiltrates data before encrypting systems, and then posts samples on its leak site to pressure victims into payment. Notable prior victims have included organizations in various sectors, though specific names are scattered across ransomware-tracking platforms. Their playbook follows the now-standard ransomware pattern of double extortion: encryption plus public data exposure.

What to do

• Run a DoxxScan to map every link between your emails, phone numbers, handles, and real-world identity so you can see exactly what this claimed breach connects to.
• Rotate any password you used at Exco or with any affiliated accountant anywhere else it is reused, then enable 2FA through an authenticator app rather than text messages.
• Enable continuous DoxxScan monitoring across 13.1 billion+ breach records and more than 100 platforms so the next time your information surfaces you learn within hours instead of months.
• Cover the household with DoxxScan family protection that extends to dependents and children's gaming accounts, which often become the next link in doxxing chains after credential leaks like this one.
• Let remediation specialists handle the repetitive work of sending takedown notices to data brokers and monitoring follow-on leaks that stem from the Exco files.

The incident shows that even established professional-services firms can be hit and that the data they hold travels farther and faster than most people expect. Taking concrete steps now limits how far this claimed breach can follow you or your family. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and over 100 platforms, AI-powered identity-chain mapping that connects scattered online handles to real identities, and hands-on remediation by specialists who manage takedowns for you, with coverage that includes every member of your household and your children's gaming accounts.