Disclosure context

About coinbasecartel

CoinbaseCartel is a ransomware group that emerged in September 2025 with financially motivated operations targeting organizations across multiple sectors and geographic regions. The group has demonstrated significant activity in a short timeframe, compromising at least 102 known victims primarily across the United States, United Arab Emirates, Germany, Canada, and Brazil. Their targeting patterns show a preference for technology companies, financial services organizations, manufacturing entities, and consumer services businesses, suggesting an opportunistic approach focused on organizations likely to have both valuable data and the financial resources to pay ransoms. Given the group's recent emergence and limited public documentation from established threat intelligence sources, details regarding their specific attack methodologies, infrastructure, and organizational structure remain largely unconfirmed by major cybersecurity firms or law enforcement agencies. The group appears to maintain active operations as of late 2025, though comprehensive analysis of their tactics, techniques, and procedures awaits further investigation and reporting by established threat intelligence organizations. The group has been linked to 176 public disclosures across our corpus. First observed on a leak site on September 15, 2025; most recent post May 16, 2026. The operation is currently active.

Also tracked as: coinbase cartel.

Timeline of this disclosure

May 16, 2026JBS Brazil listed by coinbasecartelon the group's public leak site

Data size: 43 GB

Sector and geography

This disclosure adds to ransomware activity in the Food/Agriculture sector. Geographically, JBS Brazil is reported in Brazil, a country with 319 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

JBS Brazil

Claimed by coinbasecartel · listed 5 days ago

43 GB

Data size

Age

since listed · data leaked

Status timeline

Listed
May 16, 2026
Data leaked

At a glance

Group: coinbasecartel
Status: Data leaked
Country: Brazil
Sector: Food/Agriculture
Listed on leak site: May 16, 2026
Data size: 43 GB

About the victim

AI dossier — public-source company profile

JBS Brazil is the Brazilian headquarters of JBS S.A., one of the world's largest meat processing and food production companies. Headquartered in São Paulo, Brazil, JBS processes beef, pork, poultry, and other protein products, operating hundreds of plants across multiple continents. The company supplies major global markets and is a dominant player in the global protein supply chain.

Industry: Meat Processing & Food Production
Employees: 150000+
Founded: 1953

Attack summary

Severity: high — JBS is a critical food infrastructure company of global scale; confirmed sample upload indicates actual exfiltration occurred. A breach of this entity carries significant operational, reputational, and supply-chain risk, and likely involves substantial business and potentially employee PII data, though the specific data types in the sample are not detailed.

The coinbasecartel group claims to have exfiltrated data from JBS Brazil and has uploaded a sample as proof of access. No ransom amount or total data volume has been specified in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Sample data files (nature unspecified)

The group's post references roughly 1 proof file.

What the group claims

Sample uploaded

The leak post

captured from the group's site

We are behind on many leaks , that's going to change soon. New leaks added. Grafana Zywave
# WE HAVE ALL YOUR DATA
Negotiate now, or don't, the choice is yours.
We will make this a sustained campaign and watch your reputation burn.
We can cause you more damage then you would ever imagine,contact us.
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### Verimatrix - 43gb Leaked
### PC SOFT FRANCE - Leaked
### RAKS Sp. z o.o. b Leaked
### Lacoste - Updated with proof
### Canada Goose - Updated with proof
### Flash Charm INC - (IDERA)
### JBS Brazil - Sample uploaded
### Dolby Laboratories - updated Sample
### ILLUMINA - Data uploaded
### ATG - New samples added
### Propertyfinder / PropSpace CRM - In aucitioin place your bids now !!!
### Peru LNG (Hunt LNG Operating C…

Screenshot of the leak post

Sources

Leak posthttp://fjg4zi4opkxkvdz7mvwp7h6goe4tcby3hhkrz43pht4j3vakhy75znyd.onion

Source

Indexed 5 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.