Skip to content
Back to Blog
high severity May 16, 2024 · 3 min read Unverified claim — what this is

Matadero de Gijón - Biogas energy plant - mataderodegijon.es Listed by ransomhub Ransomware Group

If you are a customer of Matadero de Gijón, here’s what is being claimed, and what it would mean for you.

Matadero de Gijón was listed on Ransomhub's leak site. Ransomhub claims to have stolen internal data. This is the group's claim, not a confirmed finding.

Matadero de Gijón - Biogas energy plant - mataderodegijon.es Listed by ransomhub Ransomware Group

On May 16, 2024, the Spanish biogas energy plant Matadero de Gijón appeared on the RansomHub ransomware leak site. The listing shows that attackers exfiltrated 15 GB of internal files during a ransomware incident. The data has not yet been published, and the number of people whose information is contained in those files remains unknown.

Already exposed?
You can’t unleak data. You can take away what it’s worth.
A leaked record is where it starts, not where it ends. What turns it into your front door is the look-up sites publishing your address beside your name — and those are what an AI reads when somebody asks about you. The free scan shows you both. We write to 582 companies.
See what is exposed about you — free scan →
Not ready yet? Run a free breach check on this email
We’ll check it against 13.1B+ leaked records right now — no account needed. Continuous monitoring & alerts are part of Protection.

Details from the Leak Site

The RansomHub portal entry for mataderodegijon.es states that the company was hit in a ransomware attack and that internal files were taken. It records 90 visits to the victim page and lists the exfiltrated material as 15 GB. The disclosure does not specify which exact records were allegedly stolen, whether customer, employee, supplier or operational data, nor does it give any deadline for publication. The primary source is the RansomHub onion link hosted via ransomware.live, which serves as the official attacker-controlled disclosure channel.

Why This Matters for You and Your Family

When a local energy infrastructure operator like Matadero de Gijón loses control of internal files, anyone whose personal information passed through the company may be exposed. Suppliers, contractors, employees and even residents whose utility or environmental records sit in those systems now face the possibility that their details are sitting in a criminal archive. Even if the exact data types are not yet public, the mere fact that 15 GB of internal files left the network means names, addresses, contact details, contract numbers or payment records could be included. For ordinary families, this translates into heightened risk of identity theft, phishing campaigns and unwanted solicitations that can last for years.

The Doxxing and Identity-Chain Risk

Ransomware operators rarely stop at one dataset. A single leaked email or phone number from this claimed breach can be chained with information from previous incidents to build a complete profile. Attackers link your work email to personal accounts, gaming handles, family addresses and children’s online profiles. Once those connections are mapped, targeted doxxing, SIM-swapping or extortion attempts become far easier. Credential leaks of this kind frequently cascade into gaming account takeovers, especially for households where the same password is reused across business and personal services.

RansomHub’s Known Track Record

Public reporting attributes RansomHub’s emergence to early 2024. The group has quickly built a reputation for double-extortion tactics: encrypting victim networks while simultaneously exfiltrating data for later publication if ransom demands are not met. Notable prior victims include healthcare providers, manufacturers and municipal governments across multiple countries. Their typical playbook begins with initial access gained through compromised remote desktop credentials or phishing, followed by rapid lateral movement, data exfiltration over several days, and then deployment of ransomware. The group maintains a leak site that lists victims whether or not the files are ultimately published, using the mere threat of exposure as leverage.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers and real identity, including any information that may have surfaced from the Matadero de Gijón files.
  • Rotate passwords used at mataderodegijon.es or any related supplier portals anywhere they are reused, and switch on 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your data is caught in hours, not months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often become targets when credential leaks like this one create doxxing chains.
  • Let remediation specialists handle takedown requests across data brokers and leak sites on your behalf while you focus on securing your own accounts.

The Matadero de Gijón breach is a reminder that infrastructure operators handling everyday business records are now routine targets. Protecting yourself means treating every new leak as a prompt to lock down the connections that criminals exploit. Start your DoxxScan trial for continuous monitoring, AI-powered identity-chain mapping, and hands-on remediation by specialists that covers your entire family, including children’s gaming accounts.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Check your exposure
Matadero de Gijón is one listing. Your email is probably in others.
We can’t confirm any single incident against the sources we search, so we won’t pretend to. What we can show you is your own exposure — your email against 13.1B+ leaked records and the sites that publish your address. About 15 seconds. No account, no card.

By running your scan you agree to the Terms and Conditions and the Privacy Policy, and to GalaxyWarden emailing you the results of this scan.

Report details & sourcing

Severity High
Disclosed May 16, 2024
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
Share this Post on X Reddit Email