Was Las Cenizas hit by ransomware?

Las Cenizas was listed by the thegentlemen ransomware operation (Chile), 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 Las Cenizas breach?

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

Ransomware victim disclosure

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Las Cenizas

Claimed by Thegentlemen · listed 4 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 31, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Chile
Listed on leak site: Jul 31, 2026

About the victim

AI dossier — public-source company profile

Grupo Minero Las Cenizas is a medium-scale Chilean mining company with over 40 years of industry experience. Operating three main facilities in Cabildo (Valparaíso Region), Taltal (Antofagasta Region), and Franke, the company specializes in underground and surface copper extraction, concentration, and leaching to produce copper fines and cathodes.

Industry: Copper Mining & Mineral Processing
Address: Av. Apoquindo 3885, Piso 14, Las Condes, Santiago, Chile
Employees: 2847
Founded: 1980

Attack summary

Severity: medium — Data published status confirmed, but no proof files, screenshots, or data inventory details are provided in the leak post. No specific data categories (financial, operational, PII) are identified. Mining operations could involve sensitive operational or environmental data, warranting medium classification despite lack of specifics.

The threat actor claims to have compromised Grupo Minero Las Cenizas and published data. The post does not specify whether data was exfiltrated, encrypted, or both, nor does it detail the types of data involved.

medium

What the group claims

cenizas.cl zoominfo.com/c/cenizas/430439098 Grupo Minero Las Cenizas, a prominent medium-scale mining company in Chile with over four decades of industry experience. The company specializes in the production of copper fines and cathodes. Its main mining operations and facilities are strategically located in Cabildo, Taltal, and Franke, Chile

Sources

Victim sitecenizas.cl

Source

Indexed 4 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 696 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post July 31, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

July 31, 2026Las Cenizas listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 696 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

Geographically, Las Cenizas is reported in Chile, a country with 7 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Las Cenizas 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.