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Ecopetrol

Claimed by Thegentlemen · listed 10 days ago

10d
Age
since listed · data leaked

Status timeline

  1. ListedJul 19, 2026
  2. Data leakeddate unknown

At a glance

Group
Thegentlemen
Status
Data leaked
Country
Colombia
Sector
Energy
Listed on leak site
Jul 19, 2026

About the victim

AI dossier — public-source company profile

Ecopetrol S.A. is Colombia's national state-linked oil company. It operates upstream (exploration & production), midstream (pipelines, ports, transportation via subsidiary Cenit), downstream (two refineries), and has international presence in Brazil, Mexico, and the US Gulf of Mexico/Permian. The company owns critical energy infrastructure including three export ports and most of Colombia's oil pipelines.

Industry
Oil & Gas Exploration, Production, Refining & Logistics
Address
Multiple locations: Barrancabermeja, Cartagena, Coveñas (Sucre), Tumaco (Nariño), Colombia; international operations in Brazil, Mexico, USA

Attack summary

Severity: critical — Confirmed exfiltration of 1TB+ from a state-controlled national oil company operating critical energy infrastructure (refineries, pipelines, ports). Breach of this scale affecting strategic national energy assets and likely containing sensitive operational, financial, and employee data poses critical risk to national infrastructure and shareholder/stakeholder interests.

The Gentlemen claims to have exfiltrated over 1TB of data from Ecopetrol. The group has published the data, though no specific proof files are itemized in the truncated post.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Corporate financial records
  • Operational data
  • Strategic documents
  • Employee/administrative records
  • Technical/infrastructure data

What the group claims

$33.1 Billion. www.***.com.co ECOPETROL copetrol SA is a company organized as a public limited company, of national order, linked to the Ministry of Mines and Energy. It has operations located in the center, south, east and north of Colombia, as well as abroad. It has two refineries in Barrancabermeja and Cartagena. Through its subsidiary Cenit, specialized in hydrocarbon transportation and logistics, it owns three ports for the export and import of fuels and crude oil in Coveñas (Sucre) and Cartagena (Bolvar) with access to the Atlantic, and Tumaco (Nariño) on the Pacific. Cenit also owns most of the country's oil and multi-purpose pipelines that connect production systems with large consumption centers and maritime terminals. Ecopetrol also has a stake in the biofuels business and is present in Brazil, Mexico and the United States (Gulf of Mexico and Permian Texas). 1TB+ Stock Symbol = ECOPETROL

Sources

Source

Indexed 10 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 655 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post July 28, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

  • July 19, 2026Ecopetrol listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 655 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 Energy sector, which has 652 disclosures indexed across all operators we track. Geographically, Ecopetrol is reported in Colombia, a country with 19 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Ecopetrol 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.