Was ElectroHeat hit by ransomware?

ElectroHeat was listed by the Rhysida ransomware operation as a victim being extorted; data had not been published at the time of listing. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Rhysida ransomware group?

Rhysida is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

Ransomware victim disclosure

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ElectroHeat

Claimed by Rhysida · listed 3 hours ago

2.55 TB

Data size

1723527 records

Today

Age

since listed · listed for ransom

Status timeline

ListedOct 3, 2026

Current state: Listed for ransom

At a glance

Group: Rhysida
Status: Listed for ransom
Sector: Manufacturing/Industrial
Listed on leak site: Oct 3, 2026
Data size: 2.55 TB
Records: 1723527

About the victim

AI dossier — public-source company profile

ElectroHeat manufactures industrial furnaces used across global manufacturing industries. The company produces equipment with SolidWorks-designed products and maintains contracts with major OEMs including Hitachi, ABB, and Scania.

Industry: Industrial Furnaces & Manufacturing Equipment
Employees: 40+

Attack summary

Severity: critical — Confirmed exfiltration of trade secrets (complete CAD intellectual property), regulated employee personal data (passport/visa details), financial data across multiple legal entities, and confidential business agreements with specific damage figures cited.

Rhysida claims to have exfiltrated 2.55 TB of data including complete intellectual property (CAD designs and PDM vault backups), accounting and payroll databases for four legal entities, employee personal data (passports, visas, insurance), customer contracts, and confidential settlement agreements with business partners.

critical

Data the group says was taken

AI dossier — extracted from the leak post

SolidWorks CAD designs and PDM vault backups
Visma accounting databases
SPCS payroll databases (four entities)
Employee passports and visa applications
Confidential settlement agreement with ABB
Customer contracts (Hitachi, ABB, Scania)
Insurance policies
Cost-pricing calculations

The group's post references roughly 1,723,527 files advertised proof files.

What the group claims

ElectroHeat industrial furnaces are used in manufacturing industries all over the world.

The leak post

captured from the group's site

Mat Bao Corporation offers a range of services including domain registration, cloud hosting, professional email solutions, and cloud server storage. Files: 746,108Data volume: 106.8 GBGovernment inspection materials - NEAC inspection decision No. 61/QD (29.04.2025) against the certification authority, working minutes naming state inspectors and company staff (through December 2025).Corporate core - GPKD business-registration documents bearing the owner's signature, shareholder records, tax commitments (January 2026).Personal data - national ID cards (CCCD) and employee passports with signatures, staff lists.Regulator correspondence - VNNIC, NEAC, the Government Cipher Committee (including RSA-1024 token vulnerabilities).Litigation and operations - the VINASEED dispute, internal investigations, operations-department mail.
With just 7 days on the clock, seize the opportunity to bid on exclusive, unique, and impressive data. Open your wallets and be ready to buy exclusive data. We sell only to one hand, no reselling, you will be the only owner!
ElectroHeat industrial furnaces are used in manufacturing industries all over the world.Files: 1,723,527Data volume: 2,55 TBAll intellectual p…

Data the group says was taken

CAD designs
PDM drawing vault backups
accounting databases
payroll databases
settlement agreements
dispute correspondence
employee passports
visa applications
insurance policies
contracts

Screenshot of the leak post

Sources

Leak posthttp://rhysidafc6lm7qa2mkiukbezh7zuth3i4wof4mh2audkymscjm6yegad.onion

Source

Indexed 3 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 Rhysida

Rhysida is a ransomware group that emerged in June 2023, operating with primarily financial motivations through targeted attacks against critical infrastructure and public sector organizations. The group's origin and potential state affiliations remain unclear, though they operate independently rather than as a traditional Ransomware-as-a-Service model, with limited public documentation regarding connections to other cybercriminal organizations. Rhysida employs double extortion tactics, typically gaining initial access through compromised VPN credentials and exploiting vulnerable public-facing applications before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group has demonstrated a particular focus on healthcare and educational institutions, with notable attacks documented by CISA and FBI advisories highlighting their targeting of hospitals and school districts across multiple countries, resulting in significant operational disruptions to critical services. As of late 2024, Rhysida remains an active threat with continued operations targeting organizations primarily in the United States, Canada, and other Western nations, maintaining their focus on high-value sectors where operational disruption can maximize ransom payment likelihood. The group has been linked to 366 public disclosures across our corpus. First observed on a leak site on June 5, 2023; most recent post October 3, 2026. The operation is currently active.

Timeline of this disclosure

October 3, 2026ElectroHeat listed by Rhysida on the group's public leak site

Data size: 2.55 TB
Records: 1723527

Other recent disclosures by Rhysida

Rhysida has been linked to 366 public victims on Darkfield. A sample of the most recent:

See the full Rhysida dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing/Industrial sector.

If your organisation is affected

A listing by Rhysida means ElectroHeat 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.
Monitor for the data appearing on Rhysida'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.