Was Kennametal hit by ransomware?

Kennametal was listed by the Everest ransomware operation (United States), 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 Everest ransomware group?

Everest 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 Kennametal breach?

Everest published data attributed to Kennametal. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Kennametal

Claimed by Everest · listed 6 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedOct 6, 2026
Data leakeddate unknown

At a glance

Group: Everest
Status: Data leaked
Country: United States
Sector: Manufacturing
Listed on leak site: Oct 6, 2026

About the victim

AI dossier — public-source company profile

Kennametal Inc. is an American industrial technology company headquartered in Pittsburgh, Pennsylvania, specializing in manufacturing cutting tools, tooling systems, and wear-resistant materials (including tungsten carbide products). The company serves metalworking, mining, energy, aerospace, and transportation industries with global operations across the Americas, Europe, and Asia.

Industry: Industrial Cutting Tools & Wear-Resistant Materials Manufacturing
Address: Pittsburgh, Pennsylvania, US

Attack summary

Severity: medium — Data has been published by the threat actor, indicating confirmed exfiltration; however, the specific nature, volume, and sensitivity of exfiltrated data are not detailed in the available excerpt, limiting confidence in assessing true impact.

The Everest group claims to have compromised Kennametal and published data. Specific details regarding encryption, exfiltration scope, or data types are not provided in the available leak post excerpt.

medium

Original description

AI-summarised, not from the leak post

Kennametal Inc. is an American industrial technology company headquartered in Pittsburgh, Pennsylvania. It specializes in manufacturing cutting tools, tooling systems, and wear-resistant materials used in metalworking, mining, energy, aerospace, and transportation industries. Kennametal designs products made from tungsten carbide and other advanced materials, serving industrial and infrastructure sectors worldwide, with operations across the Americas, Europe, and Asia.

Sources

Leak posthttp://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/kennametal

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 Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 418 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post October 6, 2026. The operation is currently active.

Timeline of this disclosure

October 6, 2026Kennametal listed by Everest on the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 418 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,699 disclosures indexed across all operators we track. Geographically, Kennametal is reported in United States, a country with 3,175 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Everest means Kennametal 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 Everest'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.