Was Tempel hit by ransomware?

Tempel was listed by the thegentlemen ransomware operation (Germany), 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 Tempel breach?

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

Ransomware victim disclosure

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Tempel Industries

listed as Tempel · Claimed by Thegentlemen · listed 4 days ago

Age

since listed · data leaked

Status timeline

ListedAug 14, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Germany
Listed on leak site: Aug 14, 2026

About the victim

AI dossier — public-source company profile

Tempel Industries, a division of Worthington Steel (NYSE: WS), is a global manufacturer of high-precision electrical steel laminations established in 1945. Operating for over 75 years, the company specializes in advanced precision metal stamping, bonding, annealing, and overmolding services for motors, generators, transformers, and related components. They serve automotive, eMobility, industrial, and energy sectors across multiple continents.

Industry: Precision Electrical Steel Manufacturing & Metal Stamping
Address: Founded in Chicago, Illinois, USA; current global locations include Canada, Mexico, China, India, Germany, France, Italy, Slovakia, and Switzerland
Founded: 1945

Attack summary

Severity: low — Data has been marked as published, but the leak post contains only corporate information already public on the company website and ZoomInfo. No specific data exfiltration is detailed, no proof files are advertised, and no operational disruption is claimed. This appears to be an announcement listing without substantive evidence of compromise or data breach.

The group claims to have compromised Tempel Industries' systems. The leak post does not specify the nature of the attack (encryption, exfiltration, or both) or detail what data categories were accessed or exposed.

low

What the group claims

tempel.com zoominfo.com/c/tempel/87867666 Tempel Steel Company, a division of Worthington Steel, is a leading global manufacturer of high-precision electrical steel laminations. Established in 1945, the company provides essential components for motors, generators, and transformers used across the automotive, eMobility, and energy sectors. Their platform showcases advanced precision metal stamping and overmolding services designed to improve product performance and efficiency.

Sources

Victim sitetempel.com

Source

Indexed 4 days 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 756 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post August 14, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

August 14, 2026Tempel listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 756 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

Geographically, Tempel is reported in Germany, a country with 383 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Tempel 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-Bund (Germany), 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.