Was SATO hit by ransomware?

SATO was listed by the thegentlemen ransomware operation (Greece), 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 SATO breach?

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

Ransomware victim disclosure

← All victims

SATO

Claimed by Thegentlemen · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 25, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Greece
Sector: Technology
Listed on leak site: Feb 25, 2026

About the victim

AI dossier — public-source company profile

SATO (sato.gr) is a Greek company specialising in office furniture and workspace solutions, including executive and staff desks, office seating, acoustic panels, space dividers, reception areas, and acoustic phone/meeting booths. The company operates an e-shop and physical stores in Greece, and has delivered projects for notable clients such as Deloitte Greece, Dentsu, OPAP, and Germanos Group. It positions itself as a comprehensive office environment provider.

Industry: Office Furniture & Workspace Solutions

Attack summary

Severity: medium — Data is marked as published, suggesting exfiltration occurred, but the leak post content is inaccessible so the nature, volume, and sensitivity of the data cannot be confirmed. No regulated or large-scale PII exposure is evident from available information, and the company operates in a non-critical sector.

The group 'thegentlemen' claims to have attacked SATO and lists the disclosure status as 'data_published', implying data exfiltration and publication. The leak post content is not accessible due to a browser-verification (anti-bot) block, so specific claims about encrypted or exfiltrated data cannot be verified from the post text.

medium

What the group claims

sato.gr zoominfo.com/c/sato-sa/372140315 SATO is the leader in the office furniture market. In a tough and competitive market, SATO brand succeeds not only in maintaining but also in increasing its high market shares, since it offers its customers products and services that cover their most specific needs. Our main priority is to continuously improve our services and renew our products, in order to provide functional and modern solutions, while maintaining high quality and ergonomic standards, essential characteristics of the brand

The leak post

captured from the group's site

Gentlecloud Protection 🛡️ Gentlecloud Verifying your browser... Initializing security checks... I'm not a bot

Sources

Victim sitesato.gr
Leak posthttp://tezwsse5czllksjb7cwp65rvnk4oobmzti2znn42i43bjdfd2prqqkad.onion

Source

Indexed 4 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

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

February 25, 2026SATO 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 Technology sector, which has 2,526 disclosures indexed across all operators we track. Geographically, SATO is reported in Greece, a country with 3 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means SATO 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.