Was Synergy France hit by ransomware?

Synergy France was listed by the thegentlemen ransomware operation (France), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Synergy France breach?

thegentlemen published data attributed to Synergy France. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Synergy France

Claimed by Thegentlemen · listed 2 months ago

Age

since listed · data leaked

Status timeline

ListedApr 8, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: France
Sector: Business Services
Listed on leak site: Apr 8, 2026

About the victim

AI dossier — public-source company profile

Synergy France is a French data-centric consulting and training company operating from Lille and Paris. They assist clients with data integration, storage, and cloud transformation, as well as data analysis, reporting, data visualization, data science, and data governance. The company has been operating for approximately 40 years and is an Elite partner of Snowflake.

Industry: Data Management & Analytics Consulting
Address: Lille-Lezennes and Paris, France
Employees: 11-50
Founded: 1986

Attack summary

Severity: high — Data has been published by the threat actor, confirming exfiltration. As a data management and analytics consultancy, Synergy France likely holds sensitive client business data, project data, and potentially regulated data belonging to their enterprise clients (e.g., Camaïeu, Kiloutou), elevating the risk beyond the company itself.

The group 'thegentlemen' claims to have compromised Synergy France with data published (disclosed status: data_published), indicating exfiltration of company data. No specific ransom amount or data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client project data
Business data management records
Training program materials and client information
Internal company files

What the group claims

synergy.fr zoominfo.com/c/synergy-france/430369679 Synergy France specializes in data-centric solutions, assisting clients with data management projects, including integration, storage, and transformation in the cloud. They offer services in data analysis, reporting, data visualization, and data science, as well as governance through the establishment of data repositories. The company provides certified training programs in Lille and Paris, tailored to meet the specific needs of businesses

Sources

Victim sitesynergy.fr

Source

Indexed 2 months ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 483 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post June 11, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

April 8, 2026Synergy France listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 483 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,643 disclosures indexed across all operators we track. Geographically, Synergy France is reported in France, a country with 238 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Synergy France appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Monitor for the data appearing on thegentlemen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.