Was Cooper Tec Solutions hit by ransomware?

Cooper Tec Solutions was listed by the HYFLOCK 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 HYFLOCK ransomware group?

HYFLOCK 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 Cooper Tec Solutions breach?

HYFLOCK published data attributed to Cooper Tec Solutions. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Cooper Tec Solutions

Claimed by HYFLOCK · listed 4 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedOct 13, 2026
Data leakeddate unknown

At a glance

Group: HYFLOCK
Status: Data leaked
Country: Brazil
Sector: Technology
Listed on leak site: Oct 13, 2026

About the victim

AI dossier — public-source company profile

Cooper Tec Solutions is a Brazilian manufacturer of industrial heating and combustion system solutions, including custom gas burners, automation controls, and maintenance services. They operate nationwide across Brazil, serving industries such as asphalt plants, spray dryers, boilers, and thermal processes.

Industry: Industrial Heating & Combustion Systems Manufacturing
Address: Brazil (nationwide service)

Attack summary

Severity: medium — Data has been claimed as exfiltrated and a publish countdown is active, indicating imminent disclosure, but no proof files, data samples, or specific data categories have been published yet. The actual sensitivity cannot be assessed without evidence of what was taken.

HYFLOCK claims to have exfiltrated data from Cooper Tec Solutions. The group has published a countdown timer suggesting imminent data release but has not yet disclosed the nature or scope of exfiltrated information.

medium

What the group claims

Cooper Tec Solutions is a Brazilian company that provides industrial heating and combustion system solutions all across Brazil. We got a lot of their data

The leak post

captured from the group's site

## // DATA REVEAL COUNTDOWN //
0d : 20h : 41m : 58s
Cooper Tec Solutions is a Brazilian company that provides industrial heating and combustion system solutions all across Brazil. We got a lot of their data

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 HYFLOCK

HYFLOCK is a ransomware group first observed in October 2026 with an apparent primary motivation of financial gain, representing an emerging threat actor with a limited but notable operational footprint of eight confirmed victims across multiple continents. The group's geographic targeting pattern spans Brazil, Canada, India, Nigeria, and Saudi Arabia, suggesting a deliberate focus on economically significant nations across South America, South Asia, Africa, and the Middle East rather than a regionally constrained operational posture. HYFLOCK has demonstrated a cross-sector targeting approach, with confirmed victims in Technology, Financial Services, and Government and Defense verticals, indicating opportunistic selection rather than strict industry specialization. Given the group's recent emergence and limited public documentation by major threat intelligence organizations such as CISA, the FBI, or Mandiant at the time of this profile, definitive attribution regarding country of origin, RaaS affiliation, specific tooling, or initial access vectors has not been publicly established. The breadth of targeted countries across multiple regions with no clear geographic concentration, combined with the inclusion of government and defense entities alongside private sector victims, warrants close monitoring as the group's tactics, techniques, and procedures become better documented through continued incident response activity. HYFLOCK should be considered an active and emerging threat, and organizations in the identified target sectors and geographies are advised to maintain heightened defensive posture pending further intelligence development. The group has been linked to 8 public disclosures across our corpus. First observed on a leak site on October 13, 2026. The operation is currently active.

Timeline of this disclosure

October 13, 2026Cooper Tec Solutions listed by HYFLOCK on the group's public leak site

Other recent disclosures by HYFLOCK

HYFLOCK has been linked to 8 public victims on Darkfield. A sample of the most recent:

See the full HYFLOCK dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,583 disclosures indexed across all operators we track. Geographically, Cooper Tec Solutions is reported in Brazil, a country with 210 ransomware disclosures in our corpus.

If your organisation is affected

A listing by HYFLOCK means Cooper Tec Solutions 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 HYFLOCK'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.