Was Byggelit Sverige hit by ransomware?

Byggelit Sverige 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 Byggelit Sverige breach?

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

Ransomware victim disclosure

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Byggelit Sverige

Claimed by Thegentlemen · listed 6 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 16, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Sweden
Sector: Construction
Listed on leak site: Jul 16, 2026

About the victim

AI dossier — public-source company profile

Byggelit Sverige AB is a Swedish manufacturer specializing in sustainable, customized particleboard and wood component solutions since 1962. Based in Lit, they use advanced CNC technology to produce cut, drilled, and milled panels for customer specifications, with a focus on waste reduction and circular economy practices through production scrap recycling.

Industry: Wood Products Manufacturing & Particleboard Components
Address: Lit, Sweden
Founded: 1962

Attack summary

Severity: low — Disclosure is listed as 'data_published' but the leak post contains only generic company information (from ZoomInfo/public sources) with no proof files, screenshots, or evidence of sensitive data exfiltration. No ransom stated. No specific data types or operational impact claimed.

The threat actor claims to have breached Byggelit Sverige but provides no specific details about what data was exfiltrated or whether encryption occurred. The group references the company on their leak site with a ZoomInfo link and brief company description, indicating data publication.

low

Data the group says was taken

AI dossier — extracted from the leak post

business information
company operations data

What the group claims

***.se zoominfo.com/c/byggelit-sverige-ab/6046017 Swedish manufacturing company based in Lit that has been producing particleboard since 1962. They specialize in sustainable, customized particleboard component solutions, using advanced CNC technology to cut, drill, and mill panels to exact customer specifications. This approach minimizes on-site labor and waste while promoting a circular economy by recycling production scraps into new boards

Sources

Victim sitebyggelit.se

Source

Indexed 6 hours 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 618 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post July 16, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

July 16, 2026Byggelit Sverige listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 618 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 Construction sector, which has 988 disclosures indexed across all operators we track. Geographically, Byggelit Sverige is reported in Sweden, a country with 16 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Byggelit Sverige 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.
Report the incident to your national CERT, CERT-SE (Sweden), as required for your jurisdiction.
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.