Was msgas.com.br hit by ransomware?

msgas.com.br was listed by the blackwater ransomware operation (Brazil), 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 blackwater ransomware group?

blackwater 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 msgas.com.br breach?

blackwater published data attributed to msgas.com.br. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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MSGÁS

listed as msgas.com.br · Claimed by Blackwater · listed 4 days ago

Age

since listed · data leaked

Status timeline

ListedJul 25, 2026
Data leakeddate unknown

At a glance

Group: Blackwater
Status: Data leaked
Country: Brazil
Sector: Energy & Utilities
Listed on leak site: Jul 25, 2026

About the victim

AI dossier — public-source company profile

MSGÁS is a natural gas distribution company operating in Mato Grosso do Sul, Brazil. They deliver natural gas to residential, commercial, and industrial customers across the state, offering energy efficiency and sustainable solutions.

Industry: Natural Gas Distribution & Utilities
Address: Mato Grosso do Sul, Brazil

Attack summary

Severity: high — Confirmed exfiltration of customer personal data and contract information from a critical infrastructure utility provider affecting potentially thousands of end consumers; operational sensitivity of energy sector increases impact.

Blackwater claims to have exfiltrated customers' personal data, contract information, and internal company data. The group published a link to an onion site allegedly containing the stolen data.

high

Data the group says was taken

AI dossier — extracted from the leak post

customers' personal data
contract information
internal company data

What the group claims

customers' personal data, contract information, internal company data: http://ucfhnoihzgx4wz4beyzfxnh46cs37r4zbq627xyctykpatruvmghbyqd.onion/s/7f89713825a4376e/

Sources

Source

Indexed 4 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 blackwater

Based on the limited available data, Blackwater is an obscure ransomware operation that first emerged in April 2026, with only one documented victim to date, suggesting either a very new or small-scale financially motivated cybercriminal group. The group appears to operate primarily in Turkey, specifically targeting the healthcare sector based on their singular known attack. Due to the extremely limited public documentation and recent emergence timeframe, detailed information about their attack methodology, tools, encryption techniques, or operational structure remains unavailable from established threat intelligence sources such as CISA, FBI, or major security research firms. No notable high-profile campaigns, significant ransoms, or law enforcement actions have been publicly documented against this group. Given the recent April 2026 first observation date and lack of comprehensive threat intelligence reporting, the current operational status and capabilities of Blackwater remain largely unknown to the broader cybersecurity community. The group has been linked to 10 public disclosures across our corpus. First observed on a leak site on April 12, 2026; most recent post July 25, 2026. The operation is currently active.

Also tracked as: BLACK WATER.

Timeline of this disclosure

July 25, 2026msgas.com.br listed by blackwateron the group's public leak site

Other recent disclosures by blackwater

blackwater has been linked to 10 public victims on Darkfield. A sample of the most recent:

See the full blackwater dossier →

Sector and geography

This disclosure adds to ransomware activity in the Energy & Utilities sector, which has 166 disclosures indexed across all operators we track. Geographically, msgas.com.br is reported in Brazil, a country with 205 ransomware disclosures in our corpus.

If your organisation is affected

A listing by blackwater means msgas.com.br 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 blackwater'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.