Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Tempel Industries

listed as tempel.com\$628.7M\USA\111GB\<1% DISCLOSED · Claimed by Cactus · listed 1 year ago

16m
Age
since listed · data leaked

Status timeline

  1. ListedMar 12, 2025
  2. Data leakeddate unknown

At a glance

Group
Cactus
Status
Data leaked
Country
United States
Sector
Manufacturing
Listed on leak site
Mar 12, 2025

About the victim

AI dossier — public-source company profile

Tempel Industries, a Worthington Steel Company subsidiary, manufactures high-precision electrical steel laminations for electric vehicles, industrial motors, transformers, and energy sector applications. Founded in Chicago in 1945, the company operates globally across North America, Europe, and Asia with over 75 years of expertise in magnetic steel stamping and engineering.

Industry
Precision Electrical Steel Laminations Manufacturing
Address
Founded in Chicago; operates in Canada, Mexico, China, India, and Germany with US East Coast and West Coast distribution centers
Founded
1945

Attack summary

Severity: high — Confirmed exfiltration of 111 GB of data from a significant manufacturing company with global operations and critical supply chain relevance to automotive and energy sectors. No leak post content available to assess proof or specific data sensitivity, but the scale and operational context of a precision manufacturing supplier suggests exposure of proprietary engineering, customer, and operational data.

Cactus ransomware group claims to have attacked Tempel Industries and exfiltrated approximately 111 GB of data, representing less than 1% of the total data disclosed in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Business data
  • Operational records
  • Engineering/design documentation
  • Customer information
  • Supply chain data

Sources

Source

Indexed 1 year 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 Cactus

**Overview:** Cactus is a ransomware group that emerged in July 2023, primarily motivated by financial gain through double extortion tactics targeting organizations across multiple sectors. The group has demonstrated rapid expansion, compromising 552 known victims within its first year of operation. **Origin & Affiliation:** Limited public information exists regarding Cactus's country of origin or specific affiliations with other ransomware groups, though their targeting patterns and operational methods suggest they operate as an independent entity rather than a Ransomware-as-a-Service model. **Attack Methodology:** Cactus ransomware operators employ double extortion tactics, stealing sensitive data before encrypting victim systems and threatening to leak the information if ransom demands are not met. The group appears to focus on gaining initial access through common vectors such as compromised credentials and vulnerable internet-facing applications, followed by lateral movement and data exfiltration prior to deployment of their encryption payload. **Notable Campaigns:** While specific high-profile incidents have not been extensively documented by major security agencies, the group's victim count of 552 organizations within approximately one year indicates sustained and aggressive targeting campaigns across North America and Europe. Their focus on manufacturing and business services sectors suggests deliberate targeting of organizations likely to pay ransoms due to operational dependencies. **Current Status:** Cactus remains an active ransomware threat as of late 2024, continuing to target organizations primarily in the United States, Canada, and European countries with no reported law enforcement disruptions or confirmed dissolution of their operations. The group has been linked to 552 public disclosures across our corpus. First observed on a leak site on July 20, 2023; most recent post March 21, 2025. The operation is currently inactive.

Timeline of this disclosure

  • March 12, 2025tempel.com\$628.7M\USA\111GB\<1% DISCLOSED listed by Cactuson the group's public leak site

Other recent disclosures by Cactus

Cactus has been linked to 552 public victims on Darkfield. A sample of the most recent:

See the full Cactus dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,681 disclosures indexed across all operators we track. Geographically, tempel.com\$628.7M\USA\111GB\<1% DISCLOSED is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Cactus means tempel.com\$628.7M\USA\111GB\<1% DISCLOSED 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, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Cactus'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.