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high severity September 09, 2025 · 4 min read Unverified claim — what this is

Cervantes Listed by thegentlemen Ransomware Group

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

https://www.cervantes.edu.ar , Con una gran trayectoria como referentes en la educación privada de Córdoba, Cervantes mantiene el compromiso de adaptar su propuesta educativa a las necesidades del contexto actual. Hoy, más de 2 mil estudiantes eligen pertenecer a la #ComunidadIC, esta casa de estudios que apuesta constantemente a la innovación educativa.

— from The Gentlemen’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
Cervantes Listed by thegentlemen Ransomware Group

On September 9, 2025, the private educational institution Cervantes in Córdoba, Argentina, appeared on the leak site of the ransomware group known as thegentlemen. The group claims to have exfiltrated internal files from the school, which serves more than 2,000 students and their families. Anyone connected to the institution — students, parents, staff, or alumni — may now face heightened risk of identity theft or doxxing if their personal information was among the stolen data.

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What's Publicly Reported from Reporting

Public reporting indicates that thegentlemen added Cervantes to its leak site on September 9, 2025. The targeted organization is a well-established private school focused on primary and secondary education in Córdoba. Available reporting describes the incident as a ransomware attack in which internal files were allegedly exfiltrated. Exact victim numbers within the breach remain unknown, and the precise volume or type of records exposed has not been independently verified. The school’s website confirms it serves a community of over 2,000 students, meaning family addresses, contact details, student records, and staff information could potentially be included.

Why This Matters for You and Your Family

When a school’s internal files are stolen, the information taken often includes names, dates of birth, addresses, phone numbers, email accounts, and sometimes financial or medical details for students and parents. For ordinary families, this creates immediate and lasting exposure. Criminals can use these records to file fraudulent tax returns, open accounts in your name, or target your children with phishing attacks. Because schools hold data on entire households, one breach can affect multiple generations at once. If your family attends or has attended Cervantes, or if you work there, your information could already be circulating among threat actors who specialize in turning stolen data into profit.

The Doxxing and Identity-Chain Implications

Ransomware groups rarely stop at the initial leak. Once internal files surface, opportunistic criminals scrape them for email addresses, usernames, and phone numbers, then cross-reference those details across social media, gaming platforms, and data-broker sites. This process builds an identity chain that links your work email to your child’s Roblox or Minecraft account, your home address to family photos, and your phone number to banking apps. What begins as a school breach can cascade into full doxxing, account takeovers, or extortion attempts aimed at you or your children. Gaming accounts are especially vulnerable because kids often reuse passwords or email addresses tied to school records, turning a single leak into a highway for attackers.

Thegentlemen’s Publicly Known Track Record

Public reporting attributes the group’s emergence to 2024. It has since targeted hospitals, schools, and small-to-medium businesses across multiple countries. Notable prior victims include other educational institutions and healthcare providers, according to trackers that monitor ransomware leak sites. The group’s typical playbook involves initial access through phishing or exploited remote desktop protocols, followed by data exfiltration and encryption of systems. They then demand payment for decryption keys and non-disclosure of the stolen files. If ransom is not paid within their deadline, samples or full datasets are published on their dark-web leak site to pressure victims and attract secondary buyers.

What to do

  • Run a DoxxScan to map every link between your family’s emails, phone numbers, usernames, and real-world identities so you can see exactly what chains back to the Cervantes breach.
  • Rotate any password used at Cervantes anywhere else it appears, then enable two-factor authentication through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1 billion+ breach records and more than 100 platforms so the next leak exposing you or your children is flagged within hours instead of months.
  • Cover the entire household with DoxxScan family protection, which includes dependents and children’s gaming accounts that often reuse credentials from school systems and become gateways for doxxing chains.
  • Let remediation specialists handle takedown requests for any exposed family information found on data-broker sites or underground forums.

The Cervantes breach is a reminder that everyday institutions holding your family’s information remain prime targets. Taking concrete steps now can limit how far this incident travels. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and 100-plus platforms, AI-powered identity-chain mapping that connects handles to real identities, hands-on remediation by specialists, and full household coverage that explicitly protects children’s gaming accounts. Start your DoxxScan trial today to regain control before the next wave of abuse begins.

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.

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Report details & sourcing

Severity High
Disclosed September 09, 2025
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.
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