Was SATS Sports Club Sweden hit by ransomware?

SATS Sports Club Sweden was listed by the thegentlemen ransomware operation (Sweden), 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 SATS Sports Club Sweden breach?

thegentlemen published data attributed to SATS Sports Club Sweden, around 10.000 employees records. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

SATS

listed as SATS Sports Club Sweden · Claimed by Thegentlemen · listed 3 months ago

10.000 employees

Records

Age

since listed · data leaked

Status timeline

ListedMar 22, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Sweden
Listed on leak site: Mar 22, 2026
Records: 10.000 employees

About the victim

AI dossier — public-source company profile

SATS is the Nordic region's leading gym and fitness chain, operating 90+ gym locations across Sweden and the broader Nordic countries. The company offers gym training, group fitness classes, personal training, padel, yoga, physiotherapy, and digital workout services. It serves a large consumer membership base under the tagline 'We make people healthier and happier.'

Industry: Fitness & Health Clubs
Employees: 1001-5000
Founded: 1995

Attack summary

Severity: medium — Data is marked as published, suggesting exfiltration occurred, but the leak post is inaccessible so the scope and sensitivity of disclosed data cannot be verified. SATS holds significant PII on a large consumer membership base (names, payment details, health/fitness data), which elevates risk above low, but without confirmed content the severity cannot be rated high or critical.

The group 'thegentlemen' has listed SATS with a disclosed status of 'data_published', indicating data has been released; however, the leak post content is inaccessible due to a bot-verification page, so the specific nature of the claimed exfiltration or encryption cannot be confirmed from the post itself.

medium

What the group claims

sats.se zoominfo.com/c/sats-sports-club-sweden-ab/431547514 SATS is the largest fitness chain in the Nordics, founded in Sweden in 1995 with a mission to make people healthier and happier. Operating under the brands SATS, ELIXIA, and Fresh Fitness, the group runs over 274 clubs across Norway, Sweden, Finland, and Denmark, serving 733,000 members with 10,000 employees. It is also one of the five largest fitness operators in Europe, offering gym facilities, group classes, personal training, and digital fitness tools

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 sitesats.se
Leak posthttp://tezwsse5czllksjb7cwp65rvnk4oobmzti2znn42i43bjdfd2prqqkad.onion

Source

Indexed 3 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

March 22, 2026SATS Sports Club Sweden listed by thegentlemenon the group's public leak site

Records: 10.000 employees

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

Geographically, SATS Sports Club Sweden is reported in Sweden, a country with 47 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means SATS Sports Club Sweden 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.