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Secretaria da Receita Federal do Brasil (Ministério da Fazenda)

Claimed by Emperador · listed 4 hours ago

several thousand documents
Records
Today
Age
since listed · listed for ransom

Status timeline

  1. ListedOct 13, 2026

Current state: Listed for ransom

At a glance

Group
Emperador
Status
Listed for ransom
Country
Brazil
Sector
Government / Tax Authority
Listed on leak site
Oct 13, 2026
Records
several thousand documents

About the victim

AI dossier — public-source company profile

Secretaria da Receita Federal do Brasil (Brazilian Federal Tax Authority) is a department of the Ministry of Finance responsible for tax administration and fiscal operations in Brazil. It operates as a federal government agency.

Industry
Government / Tax Authority
Address
Brasília, Brazil

Attack summary

Severity: critical — Confirmed exfiltration of government credentials (passwords from gov.br), personnel data, and customer data from a federal tax authority. This represents compromise of critical government infrastructure and regulated sensitive data at scale.

The Emperador group claims to have exfiltrated several thousand documents containing personnel and customer data, as well as user data from gov.br portal including passwords. No encryption activity is mentioned.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Personnel records
  • Customer data
  • Gov.br user accounts and passwords
  • Internal government documents

What the group claims

Brazilian Federal Revenue Secretariat (Ministry of Finance). Archives contain several thousand documents with personnel and customer data, as well as all user data on gov.br with passwords.

The leak post

captured from the group's site
[ Dear Spelman Logistics, We are now in possession of 1.2M contact records (emails and phone numbers), 245K carrier profiles complete with EIN and SSN, 57K bank accounts including routing numbers, 334K live document URLs, and 4.5M carrier registry entries pulled from your MVMNT TMS. Your exposure extends well beyond your own walls. We have also reached into the systems of your partners, including: ALG Canada Inc Line Transportation Inc Maverick Acquisition Ventures Inc Reliable Freight Solutions Rhode Sense and more. If you would rather not have us contact your partners and make life difficult for your employees, we suggest you pay the following: $500,000 in BTC or XMR. You will shortly receive an email explaining how to reach us. If that fails, contact us at: Email: [email protected] / [email protected] Session: 05651c7323273b723588d47455471ee9e27feb5187a30f2933554a705aacb38358 ](http://emprdr4p7iwlhpky33tswt3k2qdeljyjcdpoysabudmmrz4z32laexad.onion/post/spelman-logistics/) [ Engaged in the sale of jewelry made of precious metals, diamond jewelry and the manufacture of custom jewelry. Country: Hong Kong, China. Year of foundation: 2011 Financial documents, personal and customer…

Data the group says was taken

  • personnel data
  • customer data
  • user credentials
  • passwords

Screenshot of the leak post

Leak screenshot for Secretaria da Receita Federal do Brasil (Ministério da Fazenda)

Sources

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 emperador

Emperador is a ransomware group first observed in August 2026 with an apparent financial motivation, though its limited operational history makes comprehensive attribution difficult at this time. Based on available data, the group has recorded at least one confirmed victim, with targeting concentrated in the Philippines and a demonstrated focus on the Government and Defense sector, suggesting either opportunistic targeting or a deliberate interest in sensitive public-sector data. Specific details regarding initial access vectors, encryption methodologies, and tooling have not been publicly documented by CISA, the FBI, Mandiant, or other reputable threat intelligence sources as of this profile's compilation, and no affiliation with known ransomware-as-a-service ecosystems or established threat actor clusters has been formally established. No notable high-profile campaigns, record ransom demands, or law enforcement actions have been publicly attributed to this group, which is consistent with its nascent operational timeline and minimal victim count. Given its very recent emergence and limited observed activity, Emperador should be considered an emerging and uncharacterized threat requiring continued monitoring, particularly by organizations operating within Philippine government and defense environments. The group has been linked to 77 public disclosures across our corpus. First observed on a leak site on August 12, 2026; most recent post October 13, 2026. The operation is currently active.

Timeline of this disclosure

  • October 13, 2026Secretaria da Receita Federal do Brasil (Ministério da Fazenda) listed by emperador on the group's public leak site
Records
several thousand documents

Other recent disclosures by emperador

emperador has been linked to 77 public victims on Darkfield. A sample of the most recent:

See the full emperador dossier →

Sector and geography

This disclosure adds to ransomware activity in the Government / Tax Authority sector. Geographically, Secretaria da Receita Federal do Brasil (Ministério da Fazenda) is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by emperador means Secretaria da Receita Federal do Brasil (Ministério da Fazenda) appeared on a ransomware extortion site and is being pressured to pay before any publication. 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, CERT.br (Brazil), as required for your jurisdiction.
  • Monitor for the data appearing on emperador'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.