OSP HOLDING FRANCE Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
OSP HOLDING FRANCE was listed by thegentlemen Ransomware Group on June 30, 2026, after internal files were exfiltrated in a ransomware attack; the number of people affected remains unknown. Check whether your information was exposed and take protective steps if needed.
Breaking down the breach
The only confirmed information is the group’s listing of OSP HOLDING FRANCE and its assertion that internal files were taken. No date of intrusion, duration of access, or method of entry has been disclosed. The scale of the exfiltration and whether any data was subsequently published or used for extortion are also not known at this time.
Who is thegentlemen?
Thegentlemen is a ransomware operation that maintains a leak site to list organisations it claims to have targeted. Such groups commonly encrypt systems and threaten to release stolen material if ransom demands are not met. The listing of OSP HOLDING FRANCE constitutes the group’s claim; independent confirmation of the incident has not been reported.
OSP HOLDING FRANCE and its sector
OSP HOLDING FRANCE is a French company founded in 2018 and headquartered in Boulogne-Billancourt. It is managed by APInvest France, has share capital exceeding €14.4 million, and employs between 50 and 99 people. The firm designs and assembles industrial process control equipment and develops and maintains software for parking management systems. Companies in this sector routinely handle operational data, customer records, and technical documentation related to control systems and software platforms.
What was likely exposed
The listing refers to internal files exfiltrated in a ransomware attack. The precise categories of data within those files have not been disclosed. Organisations of this type typically store employee records, customer contracts, technical specifications, and system credentials, yet the exact contents remain unconfirmed.
The real-world impact
Exposure of internal files could create operational and reputational consequences for the company and any counterparties referenced in the material. Individuals whose information appears in the files may face risks of targeted fraud or misuse of credentials, though the absence of confirmed data types makes the scope of personal impact impossible to quantify at present.
If your data was in this claimed breach
Monitor accounts for unusual activity and change passwords for any services that may have been referenced in company records. Enable multi-factor authentication where available. Readers can run a free exposure scan of their email address against known breach data to check for prior appearances in published incidents.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by thegentlemen — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.