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Prefeitura Municipal de Itabira

Claimed by ALPHV/BlackCat · listed 3 years ago

31m
Age
since listed · data leaked

Status timeline

  1. ListedDec 24, 2023
  2. Data leakeddate unknown

At a glance

Group
ALPHV/BlackCat
Status
Data leaked
Country
Brazil
Sector
Government
Listed on leak site
Dec 24, 2023

About the victim

AI dossier — public-source company profile

Prefeitura Municipal de Itabira is the municipal government administration of Itabira, a city in Minas Gerais state, Brazil. It provides local government services and public administration for the municipality.

Industry
Government Administration
Address
Itabira, Minas Gerais, Brazil

Attack summary

Severity: medium — Target is a municipal government entity (potentially holding citizen PII and administrative records), but the leak post contains no proof files, data samples, or specific claims about what was accessed or exfiltrated. Confirmation of actual data publication is absent from the provided excerpt.

ALPHV/BlackCat claims to have compromised the municipal government's systems and published data. The group issued a final negotiation demand but provided no specific details about the scope of exfiltration or encryption.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Municipal government records
  • Administrative data

What the group claims

LAST CHANCE TO START NEGOTIATIONS ÚLTIMA OPORTUNIDADE PARA NEGOCIAR

Sources

Source

Indexed 3 years 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 ALPHV/BlackCat

ALPHV, also known as BlackCat or Noberus, is a sophisticated ransomware-as-a-service operation that emerged in November 2021 and quickly became one of the most prolific ransomware groups globally, driven by financial motivations and responsible for compromising over 930 victims worldwide. The group is believed to be operated by Russian-speaking cybercriminals and represents an evolution of the BlackMatter ransomware operation, operating under a RaaS model that recruits experienced affiliates from other disbanded ransomware groups. ALPHV employs a multi-faceted attack methodology utilizing various initial access vectors including compromised Remote Desktop Protocol credentials, phishing campaigns, and exploitation of unpatched vulnerabilities, followed by deployment of their Rust-based ransomware payload that supports both Windows and Linux environments, while consistently employing double extortion tactics that involve data theft prior to encryption and threats to publish stolen information on their leak site. Notable campaigns include high-profile attacks against critical infrastructure and major corporations across healthcare, finance, and energy sectors, with the group demanding ransoms ranging from hundreds of thousands to millions of dollars, prompting the FBI and CISA to issue multiple advisories warning of their targeting of critical infrastructure organizations. As of early 2024, ALPHV remains active despite ongoing law enforcement efforts, continuing to evolve their tactics and maintain their position as one of the most significant ransomware threats globally. The group has been linked to 1,662 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post March 3, 2024. The operation is currently inactive.

Also tracked as: ALPHV, BlackCat, Noberus.

Timeline of this disclosure

  • December 24, 2023Prefeitura Municipal de Itabira listed by ALPHV/BlackCaton the group's public leak site

Other recent disclosures by ALPHV/BlackCat

ALPHV/BlackCat has been linked to 1,662 public victims on Darkfield. A sample of the most recent:

See the full ALPHV/BlackCat dossier →

Sector and geography

This disclosure adds to ransomware activity in the Government sector, which has 685 disclosures indexed across all operators we track. Geographically, Prefeitura Municipal de Itabira is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by ALPHV/BlackCat means Prefeitura Municipal de Itabira 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, CERT.br (Brazil), as required for your jurisdiction.
  • Monitor for the data appearing on ALPHV/BlackCat'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.